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CoAs2-3
Cubic
Skutterudite, a cobalt arsenide mineral, was first verified from Franklin by Holmes (1945, 1947). The drawings of isometric crystals by Koenig (1890) and Palache (1935) are possibly of skutterudite. Oen et al. (1984) reported skutterudite as modified euhedral crystals isolated from the other arsenides in the calcite and fluorite gangue. Some such crystals have cores of highly twinned rammelsbergite. Such isolated crystals are in the section, shown in figure 21-30, of a specimen in the Harvard collection (HU # 117576). An analysis is given in Table 18. Skutterudite is among the rarest of the Franklin arsenides and is not known from Sterling Hill.
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| Copyright © 1995 by Pete J. Dunn |
Website
by Herb Yeates
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Link
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This
page created: January 11, 2001 |
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