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Fe3+(AsO4).2H2O
Orthorhombic
Scorodite, a ferric-iron arsenate hydrate mineral, was reported from Sterling Hill by Dunn (1979c). It occurs with pharmacosiderite on the 340 level. The light-yellow, euhedral crystals are less than 1 mm in size and resemble in habit those from Djebel Debar in Algeria. Partial analysis indicates they are near end-member composition, with Mn and Mg absent, and Zn present in but traces. Although rare locally, scorodite was also verified from the arsenate assemblage on the 180 level where it occurred as small, blue, pseudo-octahedral crystals with sphalerite and koettigite. It is best verified using X-ray methods. Scorodite has not been reported from Franklin.
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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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