QUARTZ VAR. CHALCEDONY AFTER ANHYDRITE

QUARTZ VAR. CHALCEDONY AFTER ANHYDRITE

Ref: 1H621

Located:

CASCAS, GRAN CHIMU, LA LIBERTAD, PERU

Dimensions: 8.5 X 6.2 X 3.2 cm.

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450 €

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Few specimens like these we offer were collected in this Peruvian mine, most of them were colorless, or only slightly bluish. On the contrary, some specimens appeared with a very remarkable sky blue color. They are tabular anhydrite crystals that have been almost totally pseudomorphized by chalcedony. We can observe inside the structures some zoning, even in botryoidal ones, with a lighter center and zoning bands of different shades of sky blue. In the outer part there is a thin layer of what could be identified as opal. Its behavior under UV light and sunlight stands out. An unusual and really aesthetic pieces. Fluorescence UVC & UVA. The main crystal is: 5,0 x 1,5 x 1,0 cm. 1,97 x 0,6 x 0,4 In.

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