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This occurs in metamorphic and igneous rocks in Norway, the USA, India, and Russia. It is a metallic, shiny feldspar mineral exhibiting in certain directions a brilliant spangled appearance, which has led to its use as an ornamental stone…… Typically it contains red glitter and orange, or green platy crystals, which is caused by light reflections from tiny hematite platelets that give it a metallic glitter……………. But it is basically just translucent quartz spangled with bits of mica or other minerals