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A variety of chalcedony coloured by Cr compounds. Also known as
Chrome-chalcedony — specimen 0610
, photo © NMNHS
Material from ‘Repository’
— 6.08 ct, Zimbabwe, Mashonaland West, Makonde, Mutorashanga.
Gemmology — gemstones
National Museum of Natural History, Sofia
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None of the specimens illustrated in this site is on display in the permanent exhibition of the National Museum of Natural History, Sofia.