G103 0637A020R06077078999 GIR Schist Plagioclase/feldsparChlorite Quartz Sericite 30 1 30 40 30 1 30 40 <1 <.01 <1 <1 N/A N/A N/A N/A Vesicles 0 Piece number 999 is a dummy value, no piece number was given. Greenschist facies. N G103 0637A023R03023024001 EVA Peridotite, altered Foliated, porphyroclastic < 1.5mm Olivine Orthopyroxene Spinel 90 ~10 <1 90 ~10 <1 N/A N/A N/A N/A N/A N/A Completely serpentinized. Brown in color, high Al. Vesicles 0 Serpentine Calcite Magnetite 30 70 5 Crystals 0.5 mm - >1 mm. Veins, good crystals. Associated with serpentine. A couple of fragments of olivine (possibly px) otherwise chromite is the only relict mineral. Rock is foliated and exceedingly altered (yellow in color). Calcite preserves foliation, but late stage veins are at high angles. Otherwise the rock is very punky. Primary mineralogy percentages are given in estimated primary abundances. Y G103 0637A023R03026028001 GIR Serpentinized peridotite Porphyoclastic Orthopyroxene Spinel 10 2 10 2 0.8 0.1 Rounded Elongated Chlorite rich? Vesicles 0 Calcite Serpentine 20 70 Beautiful orthopryroxene and olivine. N G103 0637A023R03037040002 EVA Altered peridotite (pale yellow) Sheared, foliated, porphyroclastic < 1mm - 6mm Olivine Clinopyroxene Orthopyroxene 80 10 5-10 80 10 5-10 N/A N/A N/A N/A N/A Elongate Completely serpentized. Serpentinized, but psuedomorphs can be seen. Vesicles 0 Serpentine Calcite 30-4040-50 Extensive, pervasive. Small calcite veins (<0.5mm thick), subparallel to foliation. Fragments of cpx possibly olivine. Cpx-rich sample. Grains-fragments appear brecciated and widely separated by extensive serpentinization and calcification. Y G103 0637A023R03046048003 EVA Altered peridotite Porphyroclastic, sheared 3-4mm Olivine Clinopyroxene Orthoyroxene Spinel 85 <5 10-15<1 85 <5 10-15<1 2-3 2 5 2 High mg Diopside Enstatite High al Equant, altered Equant, strained Elongate Equant, fractured Almost completely altered. With serpentine veins in cpx. Mostly serpentized. One grain appears to be busted apart by serpentine veins. Vesicles 0 Serpentine Calcite Fe-oxides 70 15-205 Pervasive, several episodes. In 0.5 mm veins parallel to foliation. General fine grained red to opaque dusting on slide. Both olivine and cpx fragments, minor opx. Orthopyroxene generally serpentinized, but pseudomorph is still recognizable. Foliation defined by pyroxene elongation and bands(?), secondarily by veining. Y G103 0637A023R03065068005 EVA Altered yellow brown peridotite Coarse porphyroclastic, sheared Up to 7-8 mm Olivine Clinopyroxene Orthopyroxene Spinel 75 5 20 < 1 75 5 20 < 1 N/A N/A N/A N/A N/A N/A Elongate N/A Completely serpentinized. Almost completely serpentinized, strained. Coated with Fe-oxide phase. Vesicles 0 Serpentine Calcite Red-brown amorphous? 40 40 20 Veins and patches of meshworked veins. Both anastamosing veins and patches with bladed crystals. Associated with clinopyroxenes. Calcite is last stage of alteration, roughly parallel to foliation. Y G103 0637A023R03069070005 EVA Altered peridotite Porphyroclastic Up to 5-6 mm Olivine Clinopyroxene Orthopyroxene 75 5 20 75 5 20 N/A 3 5-6 N/A Equant Elongate Mostly altered. Vesicles 0 Serpentine Calcite 60 40 Mesh work. Veins parallel to foliation, some patches. Good cpx. Heavily altered with calcite, tends to obscure texture, except where px grains or pseudomorphs are preserved. Slide from an oriented section. Y G103 0637A023R03083085006 EVA Altered peridotite Foliated 5 mm Olivine Clinopyroxene Orthopyroxene Spinel 90 1 10 1-2 90 1 10 1-2 ? ? 0.5-0.8 0.3-0.5 N/A N/A N/A Elongate, embayed Almost completely serpentinized. Yellow to red color. Vesicles 0 Serpentine Calcite 90 10-15 Fine mesh work, includes small fragments. Confined to more distinct veins, not as pervasive. <0.1-0.8 mm. Chr, ol, px fragments. More serpentine - less calcite; less cpx - more spinel. Sample is less replaced and brecciated by calcite veins than other sections. Y G103 0637A024R01021023002 EVA Altered peridotite Porphyroclastic Up to 5 mm Olivine Orthopyroxene Spinel 90 <10 <1 90 <10 <1 ? up to 5 2 N/A Elongate Elongate 95% altered to serpentine. Serpentinized, lots of thin exsolution lamellae. Parallel to foliation. Vesicles 0 Serpentine Calcite 80 20 Mesh work and altered opx. Veins up to 2mm; patches surrounding opx. Scattered or fragments of opx, chr. Opx-poor sample, less sheared than other sample. Foliation not as prominant, more serpentization, less calcite. Y G103 0637A024R01055058004C EVA Altered peridotite Porphyroclastic Up to 7 mm Olivine Clinopyroxene Orthopyroxene Spinel N/A 1 N/A 1 90 1 N/A 1 N/A 1-2 up to 7 3 Enstatite High Al N/A Rounded N/A Elongate More than 95% altered, a few fragments. Mostly altered. Altered to serpentine and calcite, bastite. Light brown, fractured. Vesicles 0 Calcite Serpentine Fe-oxides 25 70 5 In veins and associated with opx alteration. Mesh work. Brownish-red amorphous veins associated with some calcite. A few olivine fragments, cpx, more chromite. Opx pseudomorphs are bent. Alteration is complex: bastite and calcite. Y G103 0637A024R01082084004C EVA Altered peridotite Porphyroclastic Up to 5mm Olivine Orthopyroxene Chromite 95 5 Trace 95 5 Trace ? 5 1 N/A N/A Irregular Completely altered. Completely altered to serpentine and calcite. Small. Vesicles 0 Calcite Serpentine Magnetite 15 85 Trace Associated with opx and in veins. Mesh work. Some relatively euhedral grains. Extremely altered. Calcite is associated with alteration of opx (early, kind of punky) and in anastomosing veins (up to 1mm); often at high angle to foliation (roughly vertical). Most of the sample is serpentine. Oriented section. Y G103 0637A024R01135137005 EVA Altered peridotite Porphyroclastic, foliated 2-4 mm Olivine Clinopyroxene Orthopyroxene Spinel 90 ? 5-10 Trace 90 ? 5-10 Trace ? 2 2-4 1 N/A N/A N/A Elongate Completely serpentinized. Some calcite psuedomorphs? Altered. Broken and elongate, red in color. Vesicles 0 Serpentine Magnetite Calcite 85 15 N/A Mesh work, but preserves a foliation. Some octahedron associated with calcite veins. In veins and associated with opx. Completely altered. Y G103 0637A024R02070072001 EVA Altered peridotite Completely serpentinized N/A N/A N/A N/A N/A Vesicles 0 Calcite Serpentine 25-3070-75 Veins and patches, coarsely crystalline. Much of slide wiped out during grinding process. Completely altered to serpentine and calcite. Y G103 0637A024R02082085001 EVA Altered peridotite Porphyroclastic, foliated 2 - 5 mm Clinopyroxene Orthopyroxene Spinel 5 10-151 5 10-151 2-3 5 1-3 Diopside Enstatite High Al? Equant Elongate, strained Elongate Relatively equant, altered to least extension. Altered to serpentine and calcite. Elongate parallel to foliation, fractured, light brown. Vesicles 0 Serpentine Calcite N/A N/A At least two episodes, mesh work and veins. Veins and patches associated with px alteration. Pyroxene-rich peridotite, sheared (opx). Pyroxene occurs in bands, opx strained. Y G103 0637A025R01001002001 EVA Pyroxene-rich altered peridotite Porphyroclastic 5-8 mm Olivine Clinopyroxene Orthopyroxene Spinel 75-801 20 <1 75-801 20 <1 N/A 2 5-8 3 N/A Equant Elongate Very fractured Serpentinized. Altered to calcite. Mostly altered to bastite and calcite. Coated with Fe-oxide, red color. Vesicles 0 Calcite Serpentine Fe-oxides 20 80 N/A Veins 45 degrees to foliation, and in large patches associated with alteration of px. Mesh work. Gives a red color to much of rock, amorphous. Kind of a messy sample, lots of fine grained calcite (generally associated with alteration of px) which breaks up px fragment. Y G103 0637A025R01026028008A EVA Altered peridotite Porphyroclastic 3-8 mm Olivine Clinopyroxene Orthopyroxene Chromite 80 2 15 1 80 2 15 1 N/A N/A up to 8 2 N/A N/A Sheared Elongate Mostly altered. Altered. Fractured. Vesicles 0 Calcite Serpentine Fe-oxide 15 80 5 Thin irregular veins, associated with opx. Brown-red amorphous or fine grained, associated with serpentine. Also small magnetite crystals. Tiny opx, ol remnants. Cpx? associated with opx porphyroclast. Y G103 0637A025R01031033008B EVA Altered peridotite Porphyroclastic 5 mm Olivine Orthopyroxene Chromite 80-8515 <1 80-8515 <1 N/A up to 2 1-2 N/A Elongate Elongate/fractured Completely serpentinzed. Some grains highly sheared. Thin exsolution lamellae. Coated in Fe-oxide, red color. Vesicles 0 Calcite Serpentine 20 75 Coarsely crystalline, surrounds opx in veins (1-2 mm), at high angle to foliation. Mesh work, but with fabric parallel to foliation. Good opx fragments, conchoidal on one side. No obvious cpx. Y G103 0637A025R01059061008B EVA Altered peridotite Porphyroclastic 3-5 mm Olivine Clinopyroxene Orthopyroxene Chromite 80 5 10-152 80 5 10-152 N/A 1-2 3-5 N/A Diopside Enstatite High Al N/A Equant Elongate Fractured A little fractured. Small band at one end of section. Elongate parallel to foliation, altered to calcite. Light brown, strung out parallel to foliation. Vesicles 0 Calcite Serpentine 10-1585 Associated with px alteration and veins. Mesh work and rare meandering veins. Fragments of ol, cpx, opx, chr. Calcite veins, coarsely crystalline with some sort of Fe-oxide (hematite-magnetite?). Chromite-rich associated with pyroxene. Y G103 0637A025R01073075008C EVA Altered peridotite Porphyroclastic Clinopyroxene Orthopyroxene Chromite 3 10 1 3 10 1 2 3-4 2 Equant N/A Brecciated Much is altered to calcite. Altered (bastite and calcite), sheared. Vesicles 0 Serpentine/magnetiteCalcite Fe-oxide 90 10 N/A Mesh work. 1 mm veins and px alteration. Late alteration. Mostly on the side of the slide, associated with serpentine veins and surrounding calcite. Rock not as foliated as many. Opx remnants, minor cpx and ol. Y G103 0637A025R01109111008E EVA Altered peridotite (yellow) Foliated, porphyroclastic Olivine Orthopyroxene Spinel 85-9010 1 85-9010 1 N/A 5 1-2 N/A N/A Elongate Serpentinized. Mostly altered, associated with calcite. Light brown, embayed. Vesicles 0 Calcite Serpentine 30-3565-70 Radiating and bladed, large vein (7-8mm) coarsely crystalline. One half of slide comprises late stage calcite veins with large radiating clusters of crystals. Other half of slide is heavily serpentinized. Y G103 0637A025R02047049001A EVA Altered peridotite Sheared, porphyroclastic 3 mm Olivine Clinopyroxene Orthopyroxene Chromite 90-955 ? <1 90-955 ? <1 N/A N/A N/A <1 N/A Equant N/A Fractured In a band, slightly bent. Completely altered. Coated with Fe-oxide, fragmented and brecciated. Vesicles 0 Calcite Serpentine 25 75 Veins (concordant and discordant), also associated with cpx. Veins parallel to foliation. Alternating serpentine and calcite veins/bands. Very sheared and altered. Some cpx is unaltered. Can almost be called dunite with cpx. Oriented sample. Y G103 0637A025R02061063001C EVA Altered peridotite Foliated, porphyroclastic 3-4 mm Olivine Clino+orthopyroxene Chromite 85 10-15Trace 85 10-15Trace N/A N/A 3 N/A N/A Elongate Elongate parallel to foliation. Vesicles 0 Calcite Serpentine 60 40 Veining roughly parallel to foliation. Mesh structured. Orthopyroxene and olivine fragments. Heavily altered, calcite veining is pervasive. A couple of generations; 1, alteration associated with serpentine and alteration of px, and 2, veining. Half of slide is calcite vein parallel to foliation. Y G103 0637A025R02096098001D EVA Altered peridotite Sheared and porphyroclastic 1-4 mm Olivine Clinopyroxene Orthopyroxene Spinel 85 1-2 10 1 85 1-2 10 1 N/A 1-2 3-4 1-3 High Al N/A Equant Elongate N/A Altered. Fractured. Altered and sheared. Fractured and strung out along foliation plane. Vesicles 0 Calcite Serpentine 10 90 Thin veins (1mm) parallel to and 45 degrees to foliation. Mesh and veins in opx. Fragments of brecciated cpx, ol, and spinel. Larger remnants of opx. Y G103 0637A025R02114116001E EVA Altered peridotite Porphyroclastic Orthopyroxene Chromite 10? Trace 10? Trace N/A N/A N/A N/A Primary mineralogy difficult to assess because of alteration. Vesicles 0 Calcite Serpentine 25 75 Anastamosing veins up to 2 mm thick. Mesh texture. Middle of slide wiped out during grinding. Minor opx fragments, otherwise completely altered. N G103 0637A025R03048051008A EVA Altered peridotite Brecciated with calcite alteration 2-3 mm up to 7 mm Olivine Clinopyroxene Orthopyroxene 90 1 10 90 1 10 N/A 3-4 2-3 N/A Equant N/A Difficult to estimate because of pervasive alteration and brecciation of calcite. Vesicles 0 Calcite Serpentine 60 40 Pervasive. See main comments. Relict opx, ol, and cpx. Only a couple of fragments. Calcite: thin veins, thick (2-3mm) veins which appear zoned and are surrounded by serpentine; patches associated with opx alteration; others are irregular, broken up patches, very irregular. N G103 0637A025R03058060008A EVA Altered peridotite Altered porphyroclastic Fine grained Olivine Clino/orthopyroxene Chromite 90 10 <1 90 10 <1 N/A 1 1 N/A N/A Elongate, embayed Tiny fragments. Light brown color. Vesicles 0 Calcite Serpentine 15-2080 Veins with crystals perpendicular to veins. Mostly mesh except patch (opx pseudomorph?). Tiny (< 1mm) fragments of opx and ol. Greater than 99% altered. N G103 0637A025R03062064008B EVA Altered peridotite Veined, used to be porphyroclastic Up to 5 mm Clinopyroxene Orthopyroxene Chromite 1-2 10 2 1-2 10 2 2 up to 6-7 4-5 N/A N/A Brecciated Broken up. Light brown. Vesicles 0 Serpentine Calcite 80 20 Veins and patches associated with px. No particular orientation. Good chromite. Minor fragments in large opx. Small cpx, ol. Y G103 0637A025R03090092011 EVA Altered peridotite (yellow) Extremely altered Clinopyroxene Orthopyroxene Chromite 1-2 5-10 1-2 1-2 5-10 1-2 N/A N/A N/A N/A N/A Fractured Round calcite patches? A quess, a couple of possible psuedomorphs seen. Red in color. Vesicles 0 Calcite Serpentine Brown opaques 5 35 50 Round (2-3mm) patches and veins. Fine-grained, amorphous. Center plucked. Only relict mineral is chromite. Extremely altered. N G103 0637A025R03096098011 EVA Peridotite Extremely altered and veined Up to 5 mm Olivine Orthopyroxene Chromite 80 10-151 80 10-151 N/A 3-5 1-2 N/A N/A Fractured Based on probable calcite pseudomorphs. Red. Vesicles 0 Calcite Serpentine Fe-oxide 20 75 5 Patches (opx), thin irregular veins. Massive (veins) and mesh work. Minor relict opx. At least two episodes of serpentinization. Brecciated by serpentine veins. Y G103 0637A025R04024026001A EVA Altered peridotite Sheared porphyroclastic 5 mm Olivine Orthopyroxene Chromite 75-8020 1 75-8020 1 N/A 5 1-2 N/A Oval Elongate, embayed Thin exsolution lamellae. Vesicles 0 Calcite Serpentine 15-2080 Associated with px. Veins, mesh. Pyroxene-rich. Lots of opx fragments, variably altered to calcite. Alteration is complex. Oriented section. Y G103 0637A025R04099100004 EVA Serpentinized peridotite Sheared, porphyroclastic Olivine Clinopyroxene Orthopyroxene Chromite 80 5 15 1 80 5 15 1 N/A N/A 1-8 1-3 N/A Rounded, brecciated Elongate Fractured Extremely sheared out, thin exsolution lamellae. Irregular shaped (elongate and embayed). Vesicles 0 Serpentine Calcite N/A N/A Thin veins. Fine crystalline, dusted with fine opaques. Less calcite, calcite veins are "dirtier". Opx - extremely sheared. Opx, cpx, chr, ol fragments. Serpentine parallels foliation. Y G103 0637A025R04117119005A EVA Altered peridotite Foliated Up to 7 mm Olivine Orthopyroxene Chromite 90 <10 1-2 90 <10 1-2 N/A 7 3 N/A N/A Elongate Altered. Brown color, sheared parallel to foliation. Vesicles 0 Serpentine Calcite Fe-oxide 90 <10 N/A Veins and mesh texture, primarily parallel to foliation, some cross foliation. Minor veins and small patches. Magnetite? Opx fragments, with thin exsolution lamellae. Late serpentinized and associated with calcite. Pyroxene poor sample. Good chromite. Oriented section. Y G103 0637A025R04143145005E EVA Peridotite Sheared and altered Up to 1.5 cm Olivine Clinopyroxene Orthopyroxene Chromite 90 1 5-10 1 90 1 5-10 1 N/A 3 1-10 1-2 N/A Rounded Sheared, elongate N/A More than 95% altered. Sheared parallel to foliation. Vesicles 0 Serpentine Calcite 75 1-2 Comprises most of sample. A couple of thin veins. Extremely sheared. Opx elongated by at least a factor of two. Opx, cpx, chr, ol remnants, the rest is clean serpentine (very little calcite). Y G103 0637A025R04146148005E EVA Altered peridotite Porphyroclastic and sheared Up to 1 cm Olivine Clinopyroxene Orthopyroxene Chromite 75 1 20 1 75 1 20 1 N/A N/A 1 3-4 El? Al N/A Rounded, brecciated Sheared Elongated, embayed Mostly serpentinized. Brown color, slightly higher in Ca. Vesicles 0 Serpentine Calcite 90 2 Mesh texture and some secondary veins. Minor veins. Pyroxene-rich. Quite a lot of opx, some ol and cpx fragments. Cpx - tends to be brecciated into quite small fragments. Extremely sheared rock. Y G103 0637A025R05011013001B EVA Altered peridotite Porphyroclastic Olivine Orthopyroxene Chromite 90 10 1 90 10 1 N/A 0.5 1-2 N/A N/A Equant to elongate Completely altered. Completely serpentinized. Fractured, red in color. Vesicles 0 Calcite Serpentine N/A N/A Zoned veins and patches, radiating crystals. Mesh texture and discordant veins, up to a couple of mm thick. Minor ol fragments. Alteration and calcite rims some serpentine veins, associated with fine-grained Fe-oxide. Heavily altered. Oriented section. Y G103 0637A025R05119121009B EVA Altered peridotite Coarsely porphyroclastic Up to 1 cm Clinopyroxene Orthopyroxene Chromite 25 15-201 25 15-201 N/A 1 1-3 Equant Oval Embayed Associated with orthopyroxene. Relatively fresh, some strained. Red-brown. Vesicles 0 Calcite Serpentine 10 80 Late stage vein. Pyroxene-rich sample, relatively fresh, some cpx pretty brecciated, some have exsolution lamellae. Y G103 0637A026R01036040001C EVA Altered peridotite Altered, porphyroclastic, sheared Olivine Clinopyroxene Orthopyroxene Chromite 80 5 10 1-2 80 5 10 1-2 N/A 2 5 1-2 Fo90 Diopside En90 N/A Small, equant Oval Fractured, embayed Completely serpentinized. Almost completely altered, obscured by vein. Lots of exsolution. Light brown in color. Vesicles 0 Calcite Serpentine 15 80 Veins comprising radiating bundles. Mesh work and massive veins (up to 4 mm) which irregularly cut rock, some zonation and partial replacement by calcite. Several episodes of serpentinization/calcite alteration. A couple of opx, cpx remnants. Cpx is best preserved. Opx pseudomorphs show evidence of staining. Y G103 0637A026R01049053001D EVA Serpentinite Formerly porphyroclastic/sheared Olivine Clinopyroxene Orthopyroxene Chromite 70-755 20 1 70-755 20 1 N/A 1-2 0.5-1 2 N/A N/A N/A Embayed Completely serpentinized. Completely serpentinized, pyroxene occurred in clumps. Red color (ferric oxide). Vesicles 0 Calcite Serpentine 10 90 In veins, bladed crystals. Sinuous veins and mesh background. At least two generations. 1-2 cpx/opx fragments. Prior to alteration this was a pyroxene-rich peridotite. Opx: large and occurred in clumps/bands. Shows signs of strain, bent lamellae. Y G103 0637A026R01111113005D EVA Serpentinite Porphyroclastic Olivine Clinopyroxene Orthopyroxene Chromite 85 1-2 10 <1 85 1-2 10 <1 N/A 1 2-4 1 N/A N/A N/A Embayed Altered to serpentine. With exsolution. Fractured. Vesicles 0 Calcite Serpentine 15 80-85 Sinuous veins and patches. Some veins, mostly mesh texture. Foliation is not well developed. Y G103 0637A026R01132135005F EVA Altered peridotite Porphyroclastic 2-4 mm Olivine Clinopyroxene Orthopyroxene Chromite 80 1-5 10-151 80 1-5 10-151 N/A 1 up to 4 2 N/A N/A N/A N/A Completely altered. Strained. Very embayed, fractured. Light brown color (High Al?). Vesicles 0 Calcite Serpentine 15-2075 Thin, branching veins. Fragments of cpx, opx (pretty large), chr. Y G103 0637A026R02042045001C EVA Altered peridotite Porphyroclastic Up to 5 mm Olivine Clinopyroxene Orthopyroxene Chromite 90 1 10 <1 90 1 10 <1 N/A 1-2 5 0.2 N/A N/A N/A N/A Serpentinized. Altered to serpentine and calcite. Lots of fine exsolution, strained. Red with ferric oxide. Vesicles 0 Calcite Serpentine Fe-oxide 20 N/A N/A Lots of small veins perpendicular to foliation. Like tension gashes? as well as with pyroxene. Red, amorphous, associated with serpentine, lends yellow color to rock. Almost completely altered. Minor opx, cpx. Foliation defined by pyroxene elongation. Small calcite veins which are perpendicular to foliation are discontinuous. Y G103 0637A026R02066069001E EVA Altered peridotite Sheared, porphyroclastic Olivine Clinopyroxene Orthopyroxene Chromite 90 1-2 10 Trace 90 1-2 10 Trace N/A 2-3 up to 10 1-2 N/A Round Elongate Equant, fractured Altered. Sheared. Vesicles 0 Calcite Serpentine 10 90 Veins (irregular). Veins, opx pseudomorphs, discontinuous veins and lenses. Cpx, opx, chr fragments. Y G103 0637A026R02083086001F EVA Porphyroclastic altered peridotite Porphyroclastic 3-4 mm Olivine Clinopyroxene Orthopyroxene Chromite-spinel 85-905 10 1-2 85-905 10 1-2 N/A 1-2 2-10 1-3 Fo90 Diopside En90 N/A Round Elongated Embayed Tiny fragments. Fractured. Sheared, elongate, altered to serpentine patches. Elongated, light brown. Vesicles 0 Serpentine Calcite Fe-oxide 80 10 N/A Mesh work, more massive patches associated with opx. Minor subparallel, perpendicular veins 1mm thick, well crystallized. Sometimes calcite veins. Red, amorphous, associated with veins, small magnetite octahedron. Cpx, ol?, opx, chr fragments. Opx is elongated by a factor of 2-3. Y G103 0637A026R02117121001H EVA Peridotite Sheared, porphyoclastic Olivine Clinopyroxene Orthopyroxene Chromite 90 1-2 <10 <1 90 1-2 <10 <1 N/A 2 up to 7 2 N/A N/A N/A Elongated Strained about 30 degrees. Red, elongated parallel to foliation, brecciated by serpentine and calcite veins. Vesicles 0 Calcite Serpentine 30 70 Small veins parallel to foliation. Minor cpx and opx fragments. Oriented sample. Y G103 0637A026R03006009001A EVA Altered peridotite Sheared, porphyroclastic Olivine Clinopyroxene Orthopyroxene Chromite 85-901-5 5-10 2-3 85-901-5 5-10 2-3 N/A 1 3-4 1-2 N/A N/A N/A Embayed Serpentinized. Fractured. Strung out parallel to foliation. Vesicles 0 Calcite Serpentine N/A N/A Veins subparallel to foliation. High cpx/opx. Chromite rich. Y G103 0637A026R03096099010 EVA Altered peridotite Serpentinized Chromite 1 1 2-4 Fractured Fractured and elongated parallel to foliation. Vesicles 0 Calcite Serpentine Fe-oxide 10 90 N/A 1-2 mm veins. Mesh texture. Red color, amorphous, associated with serpentine. Rock is completely serpentinized. Calcite veins are relatively thin and calcite is restricted to vein occurrences. N G103 0637A026R04067069008 EVA Altered peridotite (black) Porphyroclastic Up to 5-6 mm Clinopyroxene Orthopyroxene Chromite-spinel 2 10 1 2 10 1 2-3 3-4 N/A Rounded, fractured Elongate Embayed Sometimes associated with opx. Often with cpx along margins. Altered to serpentine, serpentine + calcite. Elongated, associated with pyroxene. Vesicles 0 Calcite Serpentine Amphibole? 10 90 <1 Thin veins associated with pyroxene, usually with serpentine. Small blades (thin needles) associated with rim of altered opx. Good cpx, opx (elongated by factor of 2-3). Oriented sample. Y G103 0637A027R01095098015B EVA Altered peridotite Porphyroclastic, brecciated 7 mm (opx) Olivine Clinopyroxene Orthopyroxene Chromite 80 2 15 1 80 2 15 1 N/A 1-2 4-7 1-2 N/A Round N/A N/A Serpentinized. Altered to calcite. Kind of oval in shape. Fractured, strung out along foliation plane. Vesicles 0 Calcite Serpentine N/A N/A Veins, associated with px, in large serpentine veins. A couple of episodes of serpentinization. Y G103 0637A027R01113116015C EVA Altered peridotite Porphyroclastic - foliated 2-5 mm Olivine Clinopyroxene Orthopyroxene Chromite 75 5 15 2 75 5 15 2 N/A 2-3 up to 5 1 N/A Round Oval N/A Serpentinized. Serpentinized, elongate parallel to foliation. Embayed and fractured. Vesicles 0 Calcite Serpentine 5 90 Meshed. Cpx, chr, ol, opx fragments. Pyroxene and chromite-rich sample. Pyroxene in bands. Y G103 0637A027R01128130015C EVA Black, altered peridotite Fine grained porphyroclastic 2-3 mm Clinopyroxene Orthopyroxene Chromite 5 10 1 5 10 1 1 up to 3 <1 Round Oval Equant Mostly serpentinized. Fractured. Vesicles 0 Calcite Serpentine 5 90 Veins perpendicular around pyroxene. Cpx fragments. Little calcite. Y G103 0637A027R02007009002 EVA Altered peridotite/serpentinite Fine grained porphyroclastic 2 mm Olivine Orthopyroxene Chromite 90 10 1 90 10 1 N/A 2 N/A N/A Oval N/A Completely altered. With magnetite coating/rim. Vesicles 0 Calcite Serpentine Chlorite 5 95 Trace Mixed with serpentine, kind of dirty. Associated with alteration of pyroxene. Sheared and brecciated. Pyroxene pseudomorphs still evident. Serpentine veins and opx pseudomorphs appear broken/rotated and brecciated. Serpentine preserves a foliation/schistosity. Rock is completely altered. N G103 0637A027R02020024004 EVA Altered peridotite Porphyroclastic 5 mm Olivine Clinopyroxene Orthopyroxene Chromite 85-902 10 1 85-902 10 1 N/A 1-2 up to 4-5 2 N/A Rounded Oval and sheared Embayed Amorphous blades along rim. Mostly altered to serpentine, rimmed with clacite, bent lamellae. Vesicles 0 Calcite Serpentine Amphibole 30 60 Mostly in large vein, zoned. Veins associated with orthopyroxene, mesh work from olivine. Rims of cpx. Y G103 0637A027R02068073009 EVA Altered peridotite (black) Coarse porphyroclastic 5-7 mm Olivine Clinopyroxene Orthopyroxene Chromite 85-905 5-10 <1 85-905 5-10 <1 N/A N/A 5-7 1-2 N/A Round, brecciated Oval Fractured Altered. In bands. Lots of thin exsolution lamellae, serpentinized. Brown-red. Vesicles 0 Calcite Serpentine 10 85 Discordant veins, kind of dirty. Small, sinuous veins, opx psuedomorphs and mesh work. Some opx shows signs of strain. Pyroxene-rich sample. Relatively fresh. Y G103 0637A027R02122125015 EVA Altered peridotite Sheared, porphyroclastic Up to 5-6 mm Clinopyroxene Orthopyroxene Chromite 5 5 1 5 5 1 3 3-5 up to 3 N/A N/A Embayed, elongated Strung out along foliation. Olivine fragments in embayments. Vesicles 0 Serpentine Calcite 95 5 Associated with cpx. Lots of cpx. Oriented sample. Y G103 0637A027R02126129016 EVA Altered peridotite (black) Porphyroclastic 2-4 mm Olivine Clinopyroxene Orthopyroxene Chromite 80 3 15 1 80 3 15 1 N/A 1 2-4 1 N/A Round Oval, elongate Embayed Altered to serpentine. Red in color (higher Cr?). Vesicles 0 Calcite Serpentine 5 90 Fine-grained in veins with pyroxene. Small veins, primarily mesh. Opx, cpx, chr, ol? fragments. Quite a bit of pyroxene, occurs in bands. Chromite associated with pyroxene. Very little calcite, therefore minerology is less obscured. Y G103 0637A027R04053056001A EVA Altered peridotite Porphyroclastic 3-4 mm Olivine Clinopyroxene Orthopyroxene Chromite 90 1 5-10 1 90 1 5-10 1 N/A <1 1-4 3-4 N/A N/A N/A N/A Mostly serpentinized. Small fragments. Good fragments, exsolution, being altered to serpentine. Large, darker color, embayed. Vesicles 0 Calcite Serpentine Fe-oxide <5 90 1-2 A few thin veins. Mesh texture, some cross-cutting veins. A few yellow opaque veins perpendicular to foliation. Relatively fresh. Serpentine, opx indicate shear. Y G103 0637A027R04124127005 EVA Altered peridotite Porphyroclastic Olivine Orthopyroxene Chromite 90 10 Trace 90 10 Trace N/A N/A 1-2 N/A N/A Brecciated Vesicles 0 Calcite Serpentine Fe-oxide 15 80 5 Lends red color and coating to rock. Pyroxene-poor sample. Almost all pyroxene is replaced by calcite and serpentine. One ol fragment (coated with ferric-iron). Most of the rock is a serpentine-oxide mix. Very altered. N G103 0637A027R05010013001 EVA Altered peridotite Porphyroclastic 3-5 mm Olivine Orthopyroxene Clinopyroxene Chromite 90 ~10 ? <1 90 ~10 ? <1 N/A up to 8 N/A 1 N/A N/A N/A N/A Completely altered. Altered, sheared, some skeletal. Possibly a few fragments. Small, rounded, embayed. Vesicles 0 Calcite Serpentine 10 85 Thin rims on opx, cross-cutting veins, replaces px. Veins cross-cut, replaces opx. Some relict opx. Y G103 0637A027R05054058007 EVA Altered peridotite Porphyroclastic 4-8 mm Olivine Clinopyroxene Orthopyroxene Chromite 80 ? 15 <1 80 ? 15 <1 N/A N/A up to 8 2-3 N/A N/A N/A N/A Mostly altered. Sheared, elongate, bent, mostly serpentinized and calcitized. Red, fractured, elongate, with olivine inclusion. Vesicles 0 Calcite Serpentine Amphibole 10 90 <1 Replacement of pyroxene. Veins, with opx, cross-cut, olivine altered. Associated with pyroxene alteration. Minor cpx fragments with amphibole? Most opx serpentinized. Almost completely altered.