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hyalite

SHOP/ MINERALS

Hyalite – hyalite - $ 28 + postage $ 11
Erongo Mountain, Erongo Region,
Namibia.
A thin crust of colourless hyalite (opal).
The last three pictures are taken with
ultraviolet lighting. Matrix has black
tourmaline (schorl). Part of matrix is
crumbly calcareous material, specimen
is however solid.Weight 186 grams.
Specimen size 60 x 83 mm and 55 mm thick.

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