Quartz and Galena Crystal Cluster | 59 grams | Mogila, Madan, Bulgaria Philippinite Product Type: Indicolite Tourmaline

Product Type: Indicolite Tourmaline

Origin: Mined in Basher Mines

This piece has been cut to show the green olivine crystals which are showcased beautifully against the surrounding black lava crust

While the term is still recognized among collectors and in older literature

Quartz and Galena Crystal Cluster | 59 grams | Mogila, Madan, Bulgaria Philippinite Product Type: Indicolite TourmalineThe LeadZinc deposits of Madan Ore Field (Southwest Rhodopy Mountains) were operated by the Turks in the Middle Ages. Greek coins from Tassos island dating from 14th century AD, have been found in the ancient galleries. As well, the name of the Madan field, which in Turkish means Ore, originates from that time. The Madan Ore Field is built up mainly of the highly crystalline rocks of the lower (Ar) and upper (Pt) metamorphic units which form the Madan