La structure du granit
Granite is an acidic plutonic intrusive igneous rock. The magma cools and crystallizes slowly deep in the Earth’s crust, forming a holocrystalline granitic texture, which macroscopically appears as a massive structure. I. Mineral Composition (Microscopic Framework)Three main minerals: Jinan Blue (material for precision 000-grade platforms) strictly belongs to gabbro (commonly called black granite). Its minerals…
