SOLD | Obsidian Kugel | Mexiko wonder stone Diese dünne Zone repräsentiert etwa

Diese dünne Zone repräsentiert etwa 4000 Jahre Ablagerung

The oil shale matrix surrounding the fossil underscores its authenticity and adds to its overall aesthetic appeal

Ammonites were shelled cephalopods that died out about 66 million years ago

is prized for its purple color

preserving the structure of the wood

SOLD | Obsidian Kugel | Mexiko wonder stone Diese dünne Zone repräsentiert etwaOrigin: Mexico Size: Diameter 21cm Description: Spherical, polished to bring out rich black tones. Cut in Mexico. Additional Information: Obsidian is a naturally occurring volcanic rock glass formed by the rapid cooling of viscous lava from volcanoes. Obsidian is extremely rich in silica (approximately 65 to 80 percent), has little water, and a chemical composition similar to rhyolite. Obsidian has a glassy luster.