BRUCITE, M-145. Nevada. Nearly white
to buff, gray or brownish masses.
Check for availability.
CALAMINE, see HEMIMORPHITE or SMlTHSONITE.
CALCITE, M-150.Missouri or Nevada. White,
yellowish, sub-transparent to translucent cleavage rhombs.
CALCITE, M-150A. Canada. Coarse
crystalline, salmon pink color.
CALCITE variety TRAVERTINE, M-150B.
California. Banded brown to buff. Clearly delineated depositional layers exhibited.
CALCITE, M-150C. California.
Coarse crystalline, skyblue.
CALCITE variety ICELAND SPAR, M-150D
Mexico. Clear cleavages to show excellent birefringence.
Please ask about the grades and sizes available and their costs.
CELESTITE, M-155. California.
Grayish blue, compact, fibrous vein sections
with a "satin spar" structure. 1x1 and 1x2 inch
are largest sizes. Check for availability.
CHALCEDONY see under QUARTZ
Wisconsin. Chalcocite from a supergene
enrichment process. Very minor associated pyrite, chalcopyrite
or bornite. The mine is now closed.
This chalcocite represents classic chemical weathering.
An environment of supergene enrichment with a
fluctuating water table enabled this type of chalcocite to form.
CHALCOPYRITE, M-175C. Mexico or Arizona. Pure masses. Good,
bright classic color.
CHALCOPYRITE, M-175D. Mexico. Acid treated to produce the "peacock"
copper colors. 1" pieces at $1 each. 1.5 - 2" pieces at $3 each. SL.
CHERT, See under QUARTZ.
CHIASTOLlTE, see under ANDALUSITE.
CHLORlTE (CLINOCHLORE), M-180.
California. Fine to coarse flake, dark green
CHLORITE, M-185. Michigan
High iron, fine grain flaky dark green masses