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PbCuAsS3
Orthorhombic
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| Figure 21-39. Distorted aggregate of seligmannite crystals from Sterling Hill. Surface effects may be inherited from calcite host now removed by dissolution in acid. Field of view is 0.6 mm in maximum dimension. | ||
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Seligmannite, a lead copper arsenic sulfide mineral, occurs at Sterling Hill, but has not been reported from Franklin. It occurs as tiny clusters of aggregates of microscopic crystals, black and highly lustrous, and also as highly distorted crystals, which might have adopted their shape in part from the calcite matrix (Figure 21-39).
No analytical data exist, and no properties were determined; verification is solely on the basis of X-ray diffraction data. Sterling Hill seligmannite occurs in the same assemblage as baumhauerite. It has been found but once.
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| Copyright © 1995 by Pete J. Dunn |
Website
by Herb Yeates
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Link
to homepage
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This
page created: January 11, 2001 |
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