 | | Report (volume) | | Sapphirine in Precambrian Rocks Associated with Stratabound Sulfide Deposits, Custer County, Colorado...Associated with Stratabound Sulfide Deposits, Custer County, Colorado By WILLIAM H. RAYMOND, PETER A. LEIGGI...BULLETIN 1513 Mineralogic relationships between sapphirine and sulfide-bearing Precambrian rocks UNITED...William H. Sapphirine in Precambrian rocks associated with stratabound sulfide deposits, Custer County, Colorado...Supt. of Docs. no.: I 19.3:1513 1. Sapphirine-Colorado-Custer County. 2. Geology, Stratigraphic-Precambrian |  | | Journal (article/letter/editorial) | | METAMORPHOSED PROTEROZOIC BASE-METAL SULFIDE OCCURRENCES, COLORADO: A RE-EVALUATION OF GAHNITE COMPOSITION AS A GUIDE...metamorphosed to the amphibolite and granulite facies in Colorado, many of which are spatially associated with Mg-rich...the Wet Mountains (Marion and Amethyst prospects and an unnamed prospect) are depleted in Zn and enriched...gedrite, tremolite, forsterite, cummingtonite, sapphirine, cordierite, enstatite, and clinohumite. The...massive-sulfide deposits in Mg-rich alteration zones in Colorado, causes a marked enrichment in the spinel component |  | | Book | | 193-256 137-208 129-192 209-264 193-256 [ [ COLORADO-Ill] 177-256 121-184 89-168 1-120 1-88 [ ...177-256 185-280 169-248 [ 425-528 337--400 COLORADO-II] 321--400 337--400 ARIZONA-Ill] 337--400...69-132 65-128 1-64 11 / 1980 20 I 1989 [ COLORADO-I] [ 289-352 385-448 [ AUSTRALlA] 353-504...Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN...Iron-manganese phosphates of the Williams pegmatites, Coosa County, Alabama (by P. B. Leavens & T. A. Simpson) 6:66-73 |
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Amethyst Prospect, Custer County, Colorado, USA