AMPHIBOLITE, ME-5. California.
Coarse, black hornblende with some interstitial
AMPHIBOLITE, ME-5A. California.
30-50% about 1 cm hornblende cleavages in fine
grain lighter green matrix of amphibole and
Also listed in
sedimentary section with other coals.
luster, classic hi-grade coal.
GARNETITE, ME-10. Nevada.
Massive compact, fine grain, light reddish brown.
DIORITE GNEISS, ME-15. California.
Fine to medium grain, predominant white
plagioclase, abundant black hornblende bands.
PORPHYROBLASTIC GNEISS, ME-15A.
California. 1-2 mm grayish white feldspar
porphyroblasts in fine to medium grain, foliate
matrix of biotite, quartz and feldspar. Probably
originally granodiorite. check. Out of stock.
GRANITE GNEISS, ME-15B.
Fine to medium grain. Salmon pink feldspar groundmass,
abundant dark biotite banding.
HORNFELS, ME-20. California. Dark
gray to nearly black, compact, very fine grained.
Composed of intermediate alkali
feldspars and calc-silica minerals.
CORDIERITE HORNFELS, ME-20A.
Nevada. Dark gray rice-like grains of
cordierite in a groundmass of fine grain
cordierite usually of a lighter color.
MARBLE, ME-35. California.
Medium grain, grayish white, dolomitic.
DOLOMITIC MARBLE, ME-35A.
California. Fine to medium grained. Sparkling
white and may show a little Fe oxide stain.
MARBLE, ME-35B. Medium
grain. Sparkling white. Georgia.
MARBLE, ME-35D. Crestmore Quarry,
California. Coarse grain, light grayish blue.
MARBLE, ME-35E. California.
Nearly white, coarse to medium grain. Check
TREMOLITE MARBLE, ME-35FF.
California. Singular and radiating glassy
needles of tremolite in fine grain, grayish
dolomitic marble. Check for small quantities.