Description

Rhyolite Tumbled Stones

Rhyolite has a trigonal crystal system and is in the mineral class of silicates, oxides. Its coloring can range from light to darker greens with clearly visible speckled inclusions. Since it is a volcanic rock, it consists of mainly quartz, feldspar and hornblende.

Rhyolite, the name, originates from the Greek Rhyz which means “stream of lava”. Because of its make-up it is many times placed in the Jasper family and depending on where it is harvested (which relates to coloring) you may find it listed as orbicular jasper (contains chalcedony inclusions) or leopard skin jasper (contains glassy or sandy colored inclusions).