tourmalin crystal

alternative aura brazil brightly chakra clarity cleanness cleavage collectors colourful crystal crystallisation crystals detail elbaite elegance facet faceting form formation free gem gemmy gems gemstone gemstones grinding hardness healing health hobby inclusions isolates jewel jewellery lapidary largely luminous lustrous luxury medicine metaphysical metaphysics mine mineral minerals mining natural nicely orientation plate polished precious present rarity refraction resource rocks round section semiprecious specimens spirituality stone tourmaline triangular tricolour trigonal valuably vitreous zoning