Rhyolite Flat Oval 15x20mm Bead Strand, 16 Inch Strand
Rhyolite is a fine-grained, extrusive igneous rock, meaning it forms from lava that cools on the Earth's surface after erupting from a volcano. Chemically, it's very similar to granite, which is formed from magma that cools slowly beneath the surface. Rhyolite is known for its light colors, often pale grey, tan, or pinkish, and is often made up of quartz and feldspar crystals.
