Boytroidal Chalcedony. Botryoidal (grape-like) structures manifest internally as "turtle-backing" or sometimes externally as "bubble-top" surfaces.
Wednesday, June 3, 2015
Boytroidal Chalcedony. Botryoidal (grape-like) structures manifest internally as "turtle-backing" or sometimes externally as "bubble-top" surfaces. Turquoise gemstone
Boytroidal Chalcedony. Botryoidal (grape-like) structures manifest internally as "turtle-backing" or sometimes externally as "bubble-top" surfaces.
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