Images of minerals from my collection

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Celestine crystals on sulphur

Celestine crystals on sulphur

Machów, Poland.

Gypsum crystal

Gypsum crystal

Dobrzyń, Poland.

Iceland spar and ulexite

Iceland spar and ulexite

Brazil & California, USA.
Both minerals show interesting optical properties: birefringence in the case of iceland spar and fiber optic-based transparency of ulexite. The text in the background is a 1909 edition of Juliusz Słowacki's Beniowski.

Diopside

Diopside

De Kalb, NY, USA.

Kertschenite crystals inside a petrified Ostrea shell

Kertschenite crystals inside a petrified Ostrea bivalve shell

Kertsch, Ukraine.


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