Silberobsidian Anhänger - Handarbeit Highlight wodurch der Stein seine rote

wodurch der Stein seine rote Farbe erhält

It consists primarily of quartz

there are many other places where opals are found and one of them is in Austria

ist der Rote Helgoland-Feuerstein heute ein beliebter Schmuckstein

Pendant made of light blue calcite from Madagascar

Silberobsidian Anhänger - Handarbeit Highlight wodurch der Stein seine rotePendant made of black silver obsidian. Obsidian (volcanic glass) Obsidian is a volcanic glass rock that forms when lava with a specific composition cools rapidly. The color of obsidian is usually black, but if you hold the stone up to the light you will see a brownish color and also the internal details such as inclusions and fractures become visible. Due to its particularly sharp fracture edges, obsidian was used to make tools in the Stone Age.