porphyritic granite
Granite is the most widely distributed acid plutonic rock, rich in SiO2, generally 65-75%, and belongs to the state of silicic acid supersaturation.
Aug 27, 2021
porphyritic granite
Granite is the most widely distributed acid plutonic rock, rich in SiO2, generally 65-75%, and belongs to the state of silicic acid supersaturation.
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