Скачать или смотреть Polished Llanite Showing Chatoyancy - Llano Rhyolite Studded with Doubly Terminated Blue Quartz

Polished Llanite Showing Chatoyancy - Llano Rhyolite Studded with Doubly Terminated Blue Quartz - This is a Rare Type of Rock Named After Its Location of Occurrence in Llano Texas - Features Doubly Terminated Bipyramidal Phenocrysts of Blue Quartz - The Crystals are Unique for their Sky Blue Centers with Dark Blue at the Margins - Depending on the Orientation in the Light, Llanite Features a Vibrant Silver-Blue Chatoyant Flash - Comes from a Hypabysal Porphyritic Rhyolite Dike that Intrudes PreCambrian Metamorphics in the Llano Uplift of Central Texas - Llanite Contains a Host of Minerals - Quartz, Microcline Microperthite, Biotite, Ilmenite, Magnetite, Apatite, Fluorite, and Zircon - Formed About 1.106 Billion Years Ago - This Specimen is from Llano Texas -- #GEMandM #llanite #llanoite #bluequartz #quartz #biotite #etsyquartz #quartzporn #gemporn #geologyporn #science #nature #igdaily #bluecrystal #instagramquartz #granite #lapidary #mineral #texasquartz #texas #ilmenite