Bicolor Blue & Green Tourmaline with Quartz Crystals on a Feldspar Matrix Quartz scepter the oldest continuously operated mine

the oldest continuously operated mine on the planet

cyan to aqua fluorescence across the calcite crystals

definitely a piece to consider

A classic specimen of botryoidal chalcedony featuring a well-formed larger dome and smaller chalcedony growths

The history of the Trepca Mines traces back the Middle Ages

Bicolor Blue & Green Tourmaline with Quartz Crystals on a Feldspar Matrix Quartz scepter the oldest continuously operated mineBeautiful bi color blue and green tourmaline crystal with quartz crystals on a matrix of white feldspar. There is some minor Muscovite mica present. The tourmaline crystal has a flat termination at the lighter color end. Size: 70 x 50 x 46 mm. 106 grams From Shigar Valley, Pakistan