Blue apatite and cleavelandite - Golconda mine, Minas Gerais,...
Small blue apatite crystals on cleavelandite, very bright and...
Nearly colorless, gem-quality topaz crystal with a broken / naturally recrystallized back.
4,5 x 2,2 x 2,2 cm.
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Small blue apatite crystals on cleavelandite, very bright and...
Rare blue tourmaline (copper-bearing) with some hints of green...
Rare blue tourmaline (copper-bearing) possessing some hints of...
Rare blue tourmaline (copper-bearing) possessing some hints of...
Very nice thumbnail made of dark green apatite crystals,...
Light blue topaz with shiny surfaces, associated with...
Small, undamaged crystal with "etched" crystallization, very...
Tourmaline crystal with a superb blue (indicolite) and green...
Tourmaline crystal with a superb blue (indicolite) and green...
Smoky, biterminated quartz, shiny, intact, with a flat back...
Two small crystals of green apatite, shiny and in very good...
Floating piece composed of bright quartz tips with beautiful...