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(Cu,Al)2H2Si2O5(OH)4.nH2O
Monoclinic
Chrysocolla, a copper silicate hydroxide hydrate mineral, has been known from Franklin and Sterling Hill for a long time. The first mention of it was by Beck (1839), and it may have been the material reported by Seymour (1868) and Darton (1883). Palache (1935) reported it as an unconfirmed species, and Frondel (1972) reported its verification from Franklin. It was reported from both Franklin and Sterling Hill by Cook (1973), and it has been seen by the writer associated with azurite and franklinite from Sterling Hill, but has not been studied. It is a minor mineral locally, blue in color, commonly but not consistently with dull luster, and occurring in hand-sized specimens.
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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 14, 2001 |
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