Indicolite tourmaline - Santa Rosa mine, Itambacuri, Minas...
Rare blue tourmaline (copper-bearing) with some hints of green...
Floating group of small green uvite (tourmaline variety) crystals, perfectly formed, associated with some colorless magnesite microcrystals.
1,5 x 1,3 x 0,8 cm.
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Rare blue tourmaline (copper-bearing) with some hints of green...
Rare blue tourmaline (copper-bearing) possessing some hints of...
Undammaged, bright, biterminated crystals of "green cap"...
Rare blue tourmaline (copper-bearing) possessing some hints of...
Tourmaline crystal with a superb blue (indicolite) and green...
Tourmaline crystal with a superb blue (indicolite) and green...
Bright, well-formed, biterminated floating crystal of...
Association of shiny black tourmaline and white quartz...