Tourmaline - Santa Rosa mine, Itambacuri, Minas Gerais, Brazil
Tourmaline crystal with a superb blue (indicolite) and green...
Tourmaline crystal with a superb blue (indicolite) and green...
Tourmaline crystal with a superb blue (indicolite) and green...
Association of shiny black tourmaline and white quartz...
Muscovite petals associated with black tourmaline (schorl)....
Floating, brilliant tourmaline crystal with a much more yellow...
Two naturally juxtaposed black tourmaline crystals (schorl...
Lazurite crystals in their marble matrix.5.8 x 4.4 x 3.5 cm