30289 132 2 800 840 1259.50 1261.82 STOS I PCE 1 23 1 S RT FEL-OL MODERATELY MICROPHYRIC BASALT; 2 S TEX MODERATELY PORPHYRITIC,VARIOLITIC 3 S % PERFECT VARIOLITIC TEXTURE* 4 P FEL 2 <0.5EUHEDRAL 5 P % ALKALI FELDSPAR OR AN ALTERATION OF ORIGINAL PLAG, 6 P % THIN 1 MICRON OUTER ZONE,SOMETIMES PARTLY OR 7 P % COMPLETELY REPLACED BY SINGLE XTL CALCITE,CARLSBAD 8 P % TWINNING,ODD PATCHY EXTINCTION,2V 20; 9 P OL <1 10 P % REPLACED BY IDDINGSITE + CHLORITE* 11 G PYX <0.25 12 G % INTERLOCKING MOSAIC OF PYX VARIOLITES,<0.25 MM IN 13 G % DIAMETER; 14 G PLAG 10 TO 0.3HOLLOW 15 G % AVERAGE SIZE IS 0.10-0.15 MM,APPARENTLY PLAG STILL 16 G % IN PROCESS OF CRYSTALLIZING* 17 A CALCITE FEL PHENOS 18 A % FEL SOMETIMES PARTLY OR COMPLETELY REPLACED BY 19 A % SINGLE XTL CALCITE; 20 A IDDINGS OL 21 A CHLORITE GROUNDMASS OL 22 A % SMALL AMOUNT OF CHLORITE IN THE GROUNDMASS* 23 30289 132 2 880 910 1259.50 1261.90 STOS I PCE 1 29 1 S RT FEL-OL MODERATELY MICROPHYRIC BASALT; 2 S TEX MODERATELY PORPHYRITIC,VARIOLITIC-INTERGRANULAR; 3 S % TRANSITIONAL VARIOLITIC-INTERGRANULAR* 4 P FEL 2 <0.5EUHEDRAL 5 P % ALKALI FELDSPAR OR AN ALTERATION OF ORIGINAL PLAG, 6 P % THIN 1 MICRON OUTER ZONE,SOMETIMES PARTLY OR 7 P % COMPLETELY REPLACED BY SINGLE XTL CALCITE,CARLSBAD 8 P % TWINNING,ODD PATCHY EXTINCTION,2V 20; 9 P OL <1 10 P % REPLACED BY IDDINGSITE + CHLORITE* 11 G PYX BUNDLES 12 G % VERY FINE PYX IN BUNDLES; 13 G PLAG 0.2-0.3ACICULAR,HOLLOW 14 G % AVERAGE SIZE IS 0.2-0.3 MM; 15 G MAGN 16 G % QUENCH; 17 G GLASS 18 G % ABUNDANT CHLORITE IN GROUNDMASS APPARENTLY 19 G % REPLACES GLASS* 20 A CHLORITE VEIN, OL,GLASS 21 A GROUNDMASS 22 A % ONE LARGE CHLORITE VEIN WITH COLIFORM TEXTURE, 23 A % ABUNDANT CHLORITE IN GROUNDMASS - APPARENTLY 24 A % REPLACING GLASS; 25 A CALCITE FEL PHENOS 26 A % FEL SOMETIMES PARTLY OR COMPLETELY REPLACED BY 27 A % SINGLE XTL CALCITE; 28 A IDDINGS OL 29 30289 132 214601480 1259.50 1262.47 STOS I PCE 9 18 1 S RT PLAG SPARSELY PHYRIC BASALT; 2 S TEX SPARSELY PHYRIC,INTERGRANULAR* 3 P PLAG <1 <1 4 P % NORMALLY ZONED* 5 G PLAG .3HOLLOW LATHS 6 G PYX SHEAF-LIKE BUNDLES 7 G MAGN EUHEDRAL-STRINGS 8 A CHLORITE VEINS, 9 A GROUNDMASS 10 A % ID UNCERTAIN FOR CHLORITE,BRIGHT GREEN-SOME PALE 11 A % YELLOWISH GREEN CHLORITE IN GROUNDMASS,PLEOCHROIC 12 A % GREEN TO YELLOW-GREEN,OCCURS IN VEINS AND ALSO AS 13 A % SINGLE XTLS IN GROUNDMASS UP TO 4MM AWAY FROM 14 A % VEIN; 15 A CALCITE VEINS 16 A HEMATITE VEINS 17 A % ID UNCERTAIN FOR HEMATITE-RED MINERAL* 18 30289 132 314701500 1259.50 1263.99 STOS I 18 1 S RT PLAG SPARSELY PHYRIC BASALT; 2 S TEX SPARSELY PHYRIC,VARIOLITIC-INTERSTITIAL 3 S % VARIOLITIC WITH INTERSTITIAL GLASS* 4 P PLAG <1 .1MICROPHENOS 5 P % APPROX COMP AN68-74,VISUAL ESTIMATES OF ALL 6 P % PERCENTAGES,2V 85-90,NEGATIVE OPTIC SIGN; 7 P OL 0 8 G PLAG 45 .3-.4MICROLITES 9 G % OFTEN HOLLOW WITH RECTANGULAR X-SECTIONS+LONG 10 G % SECTIONS; 11 G PYX 41 BUNDLES 12 G % TOO FINE-GRAINED FOR 2V DETERMINATION; 13 G MAGN 7 EUHEDRAL-SPEAR POINTS 14 G GLASS 7 15 G % SOME FRESH,SOME CHLORITIZED* 16 A CHLORITE 17 A % BRIGHT GREEN,NON-PLEOCHROIC* 18