What minerals are in obsidian rock? On what basis are sedimentary rocks identified? What are metamorphic rocks used for? What are the two textures of metamorphic rocks? What is the mineralogy of granite? In what section(s) of the rock cycle are gemstones formed?
Description. The term "Vitric properties" (from Latin vitrum, glass) refers tolayers with volcanic glass and other primary minerals derived from volcanic ejectaand which contain a limited amount of short-range-order minerals or organo-metallic complexes. ...