Llanite Rhyolite Beads

Llanite Rhyolite beads are a Precambrian felsic extrusive rock found in Llano County of Central Texas and consists mainly of feldspar, blue quartz, and biotite, with trace amounts of several other minerals. Radiometric dating indicates that this stone is Llanite Rhyolite beads are a Precambrian felsic extrusive rock fou