CRYSTAL.............. rhyolite - some with pockets divots holes or other mineral tints COLOR................. Brown Gold Green Gray White PIECES.................. 1 SIZE....................... XS MEASUREMENT..... 15-20 mm DRILLED................NO TREATED............... NO Rhyolite Crystal (1) Rhyolite Large Beautiful Stone Green Brown Pocket Rhyolite LAVA Volcano Stone Healing Crystals Tumbled Shiny Polished You will receive crystals from the same supply source as our examples photographed above. Medium-XL sized crystals Beautiful High Quality Please contact us if you need more or different quantities or have questions Some with unique terminated extras and natural inclusions