Bicolor Blue & Green Tourmaline with Quartz Crystals on a Feldspar Matrix thumbnail Fossilized coral polished tumble stones

Fossilized coral polished tumble stones shaped like an egg

Cassiterite crystals on cleavelandite are rare and highly sought after by mineral collectors

The vial is roughly 8 cm with the cork

The termination has multiple smaller terminations and is a clear smoky color

Bicolor Blue & Green Tourmaline with Quartz Crystals on a Feldspar Matrix thumbnail Fossilized coral polished tumble stonesBeautiful 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