. Bulletin - United States National Museum. Science. THE MINERALS OF IDAHO 443 identified as barite by its optical properties and blowpipe reactions. It is associated with sulphides, including pyrite, sphalerite, tetra- hedrite, and galena. CASSIA COUNTY Barite occurs with scorodite and cinnabar as the principal gangue mineral in cinnabar prospects in the Black Pine district in Cassia County. The barite forms porous aggregates of tabular white crystals of very simple habit bounded only by the base and unit prism, as shown in Figure 144. Some of the rough crystals which are buff-stained reach 3
. Bulletin - United States National Museum. Science. THE MINERALS OF IDAHO 443 identified as barite by its optical properties and blowpipe reactions. It is associated with sulphides, including pyrite, sphalerite, tetra- hedrite, and galena. CASSIA COUNTY Barite occurs with scorodite and cinnabar as the principal gangue mineral in cinnabar prospects in the Black Pine district in Cassia County. The barite forms porous aggregates of tabular white crystals of very simple habit bounded only by the base and unit prism, as shown in Figure 144. Some of the rough crystals which are buff-stained reach 3 cm. in CUSTER COUNTY Barite has been reported to occur as a gangue mineral in small amount in the Lost Packer mine in the Loon Creek district. Minute white crystals of barite rest on pyrite lining cavities in an aggregate of pyrite and bismuthinite from the Empire ledge in Washington 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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