 | | Report (issue) |
| 1C402,12201 Sunrise Valley Dr. SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105,125 South State St. SAN...references (p. ) Supt. of Docs, no.: I 19.16:1523 1. Obsidian Composition. I. Smith, Robert L. II. Thomas, John...Or-Ab-An-H2O plots Notes on the occurrence, geology, and petrography of the obsidian subgroups Group I: Obsidians...47 48 50 51 Application to the whole body of obsidian data Magma mixing and assimilation Vapor-phase...discrimination plots Geochemical features of main obsidian groups Group I: Obsidians from primitive island |
 | | Report (issue) |
| (table 1) of location and production data for each occurrence of a particular commodity. The data used to compile...that runs from Lake Mead in Mohave County southeastward to Cochise County. Five locations are listed in table...1987). [Permissive and favorable areas for the occurrence of asbestos are shown on the map by patterns...KNOWN NAMES DESCRIPTION-COMMENTS ASBESTOS COCHISE COUNTY Pearce 15' Abril Zinc Mine Chrysotile asbestos...asbestos in Permian limestone; a noteworthy mineral occurrence in a zinccopper deposit. Sees. 34 & 35 8N, 14E |
 | | Book (edition) |
| graphs gems gemstone's physical chemistry, occurrence, properties, and market potential. And spectacular...MATERIALS 16 16 239 / 18 / 19 / Luminescence Occurrence / Stone Sizes 233 15 / Comments / Journals...cases the text lists only the pervasive rences, mining and cutting techniques, or market and or especially...brilliance derived from the cutting. At the same time, hot spots or specular reflections from individual facets...soften gradually and eventually begin to flow. Obsidian and tektites are examples of naturally occurring |
 | | Report (volume) |
| DIRECTOE 4:14: NOTES ON SOME MINING DISTRICTS IN HUMBOLDT COUNTY, NEYADA BY FREDERICK LESLIE RANSOME.............................. General history of mining development..................................................................... Seven Troughs district.................................................Outlook for the district................................................. Rosebud district................................................... Red Butte district.............................................. |
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| .......................... . Situation of the district ...................................................................... General geology of the district .......................................................................................... . Occurrence and distribution ..................................... .- ........· ...................... . Obsidian ......................... ·.....................40 41 41 4 CONTENTS. General goology of the district-Continued. Structure ........ ~ . . . . . . . |
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| Pliny's and False Industrial in 70 . in Mining Treated 56 .... Time. Plinys 48 54 Value... and possibly of book a popular of most mining adventurer, a to on been authority, his a...amber. As Ismenias Great), Theophrastus, on mining engineers, among Callistratus while hence the...Mountains and of such in ,* IV, about the occurrence; Book of and he also states that Ctesias but...and nature (ruby, from differentiated of obsidian will not leave a preci- would carbunculus |
| | Book |
| Pliny's and False Industrial in 70 . in Mining Treated 56 .... Time. Plinys 48 54 Value... and possibly of book a popular of most mining adventurer, a to on been authority, his a...amber. As Ismenias Great), Theophrastus, on mining engineers, among Callistratus while hence the...Mountains and of such in ,* IV, about the occurrence; Book of and he also states that Ctesias but...and nature (ruby, from differentiated of obsidian will not leave a preci- would carbunculus |
