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Chalcedony stained by Chrysocolla (silicon dioxide and copper silicate-hydroxide)
Stuart Humphreys
Australian Museum
Sydney, Australia
Smooth, rounded masses of chalcedony with dispersed sky-blue copper mineral chrysocolla, line a cavity in oxidised copper ore. Chalcedony is a micro-crystalline variety of quartz and the chrysocolla has added its own intense blue colour.
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Details
- Title: Chalcedony stained by Chrysocolla (silicon dioxide and copper silicate-hydroxide)
- Creator: Stuart Humphreys
- Location: Arizona, USA
- Contributor: Photographer: Stuart Humphreys
- Rights: Australian Museum
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