Raw Rhyolite, Igneous Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs

RHYOLITE | Rhyolite is an aphanitic felsic rock which forms during eruptions of thick, viscous magma. Often containing phenocrysts of felsic minerals with only slightly higher crystallization temperatures than the feldspar and quartz that forms rhyolite GREAT FOR GEOLOGY CLASSROOMS | Ideal for identification & classification exercises. The evolved chemistry of the rock makes it lightweight relative to other igneous rocks- a good identifier for classification GEOLOGIST SELECTED | Each specimen is selected and hand processed by an actual geologist, ensuring each sample exhibits defining features LOCALLY PROCESSED | Our rock and mineral samples are sourced from a variety of locations around the world and are processed in Victor, NY INDIVIDUALLY PACKAGED & LABELED | Each specimen sample is packaged in a transparent bag, and is labeled & barcoded for easy identification Raw Rhyolite SpecimenSingle Sample, 1"Rhyolite is an aphanitic felsic rock which forms during eruptions of th