Graphite sprays in blue calcite It is created when silica

It is created when silica rich felsic lava extrudes from a volcano and cools so rapidly that atoms cannot arrange themselves into a structure

8cm x 5cm x 1

9cm Weight- 76g You will receive the item in the photo

5cm Weight- 341g You will receive the item in the photo

Graphite sprays in blue calcite It is created when silicaGraphite Sprays In Blue Calcite Natural Mineral From Erongo Region Namibia Size 6. 2cm x 4cm x 3cm Weight 73g You will receive the item in the photo The combination of graphite sprays in blue calcite is a unique and sought after mineral. Graphite: Graphite is a fascinating naturally occurring crystalline form of carbon. Crystal system Hexagonal Mineral class Native elements Hardness 1. 0 2. 0 Rock formation Graphite is formed primarily through the