A significant gemstone species thumbnail: gorgeous, totally gem, dark emerald green Dravite Tourmaline crystal on an off-white Calcite matrix. Matrix Dravites are very rare and very desirable from Merelani and this is a phenomenal large thumbnail or toenail-sized specimen! The gem Dravite measures 1.2cm in length and 1.1cm in width. It exhibits unprecedented crystal form with sharp faces and edges including a perfect termination - a literal crystallized gemstone! The off-white Calcite provides an excellent color contrasting matrix. ex. Irv Brown collection.