RHYOLITE 925 STERLING SILVER JEWELLERY
Ferdinand von Richthofen, a German explorer, and geologist, coined the term rhyolite (from Greek "rhuax" for stream or flow and "lithos" for stone) in 1860. Rhyolite is a volcanic igneous rock. It has a glassy, fine grain, or a variety of crystal sizes and is high in silicon. Rhyolite in its natural state has green, cream, and occasionally brown tones, as well as patterns and inclusions. Rhyolite has been mistaken for jasper because of its similar look, leading to the inaccurate labeling of it as "rainforest jasper." Rhyolite is sometimes used to make crushed stone for aggregate and fill, even though it is not ideal for building due to its high fracture rate.
Origin: Greece. Color: Gray, green, cream, and occasional brown and red tones. Clarity: Opaque. Cut: Facets. Treatment: Untreated 100% Genuine Gemstone