It occurs worldwide typically as a secondary mineral in phosphate rich granitic pegmatites in association with rhodochrosite, lithiophilite, triphylite, triploidite, dickinsonite, albite, cookeite, apatite, beryllonite, hydroxyl-herderite, and tourmaline.
en.wikipedia.org Deposits containing dolomite and siderite also readily yield amphibolites (tremolite-schists, grunerite-schists, and others) especially where there has been a certain amount of contact metamorphism by adjacent granitic masses.
en.wikipedia.org The orthogneissic facies is derived from the granitic facies, it only underwent a stronger ductile deformation.
en.wikipedia.org There are a lot of lanes and small squares made of chalky and granitic pavements.
en.wikipedia.org Large crystals of mica used for various applications are typically mined from granitic pegmatites.
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