변성암 3D 관찰

변성암(變成岩; metamorphic rock)

규암(珪岩; quartzite)

대리암(大理岩; marble)

편마암(片麻岩; gneiss)

점판암(粘板岩; slate)

편암(片岩; schist)

혼펠스(hornfels)