1921•OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)Requires access

Sphalerite in coal pyrite

Linda Dove

Abstract

The occurrence of sphalerite in pyrite-marcasite lenses in Indiana coal was reported. The sphalerite crystals (1 mm to 1 cm in diameter) were found filling interstices between the larger granules of pyrite-marcasite. Nodules of sphalerite-pyrite-marcasite occur most abundantly in the lower few centimeters of shale above the coal bed and in between the shale and coal. The author estimates that these lenses contain approximately 27% sphalerite.

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Key concepts: Marcasite, Pyrite, Sphalerite, Oil shale, Geology, Mineralogy, Coal, Geochemistry