. Bulletin - United States National Museum. Science. THE MINERALS OF IDAHO 157 LEMHI COUNTY Steel gray films and fibers occur occasionally in the ores of the Junction OWYHEE COUNTY Pyrargyrite is a common ore mineral in the Silver City and adjacent districts. In the Flint district grains of pyrargyrite 1 to 2 millimeters in diameter were noted in ore from the Rising Star mine, disseminated in white quartz with other silver minerals. In the Dc Lamar mine it was common in the silver stopes, and in crevices immediately adjacent to the "iron dike'' nuggets of pyrargyrite, miargyri
. Bulletin - United States National Museum. Science. THE MINERALS OF IDAHO 157 LEMHI COUNTY Steel gray films and fibers occur occasionally in the ores of the Junction OWYHEE COUNTY Pyrargyrite is a common ore mineral in the Silver City and adjacent districts. In the Flint district grains of pyrargyrite 1 to 2 millimeters in diameter were noted in ore from the Rising Star mine, disseminated in white quartz with other silver minerals. In the Dc Lamar mine it was common in the silver stopes, and in crevices immediately adjacent to the "iron dike'' nuggets of pyrargyrite, miargyrite. and argentite occur in soft streaks of whitish In a specimen from a stope in a raise in the east drift of the Silver City mine pyrargyrite occurs as irregular large grains loosely deposited upon crusts of quartz crys- tals, with, irregular grains of fluorite. Speci- mens from the Henrietta mine collected by Lindgren showing abundant steel gray crys- tals of miargyrite attached to quartz and covered by white clay bear a few minute deep red transparent crystals of pyrargyrite. Several of these were measured on the 2-circle goniometer. Some of them are simple, show- ing only the prism (1010) with the rhombohe- dron (1122), while others show the forms (4151) and (4152). These crystals are illus- Fie 2<S "Pyr arc yritf C'ali* trated in Figures 26 and 27. The angles fornia shaft, silver city measured are as follows: district, Owyhee county. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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