Black Tourmaline crystal with Feldspar & Mica 55mm 250.7ct 50.2g Nephrite It is used to increase

It is used to increase endurance

Connection

It is a dense cryptocrystalline mixture of serpentine group mineral

It has been shaped from the clear soft-yellow Calcite found in Iceland

Black Tourmaline crystal with Feldspar & Mica 55mm 250.7ct 50.2g Nephrite It is used to increaseRainbows and UV reactive This natural Black Tourmaline crystal with Feldspar & Mica 55mm weighs 250. 7ct or 50. 2g. It was sourced in Pakistan for Rocks and Things Store in 2023 by our partner, Lawrence Riaz. This crystal has some Feldspar and Lepidolite and other Mica on its flanks. The Black Tourmaline flashes with rainbows in normal light and the other minerals are strongly UV reactive.