ipedia, the free encyclopedia
Mohs scale hardness, 67 . Epidote is an abundant rock-forming mineral, but one of secondary origin. . wide distribution as a primary accessory constituent of many crystalline rocks, gneiss, granite, syenite, rhyolite, andesite, and others.
Some basic information and list some common terms relating to rocks, mierals and crystals . . Include Granite, rhyolite, obsidian, and basalt among others. . is by hardness, both scratch hardness and cutting resistance while the Mohs scale of .
– Sarah Baker