Utah Wonderstone BIG Matching Earring Slab Bead Pair 12x37mm
Beautiful mirror polish on these
The Wonderstone Quarry/Mine is a few miles south of Vernon, Utah. The Vernon Hills wonderstone is a welded-vitric tuff (vitric means glassy) of rhyolitic composition. It is a volcanic rock composed predominantly of volcanic glass particles which have been welded or stuck together by heat and compacted by the weight of overlying material. Alteration of the rock by circulating ground water produced the colorful banding. The maroon and yellow-brown colors are due to the presence of iron oxides.
