Lava Stone (Scoria) Skull Carving TU3029 stichtite. Serpentine Tanzanite ring set in sterling

Tanzanite ring set in sterling silver

1 gram Topaz Specimen

Locality: Hashupi

Quartz Cluster

Alexandrite Ring Size 6

Lava Stone (Scoria) Skull Carving TU3029 stichtite. Serpentine Tanzanite ring set in sterlingLava Stone (Scoria) Skull Carving Approx. Dimensions: 5x3x4 inches Approx. Weight: 1099 grams Locality: Scoria, also called Lava Stone, is a very vesicular volcanic (igneous) rock that is typically dark colored. It may contain crystals called phenocrysts. Scoria is a low density rock but, unlike pumice, it will sink in water because its specific gravity is greater than 1. Scoria forms as part of a lava flow usually near the surface of the flow, or