Feb 27, 2017. 1  Tonight, Casey Affleck took home the Academy Award for Best Actor for his role in Manchester by the Sea. While this might be a reason for celebration for the new Oscar-winner, not everyone was so eager to join in with the applause.
Bituminous coal is a sedimentary rock. Anthracite coal is considered a metamorphic rock.
1 of 1. 1. Slate is a low-grade metamorphic rock that forms from shale under pressure at temperatures of a few hundred degrees or so. Clay minerals in the shale, which originally formed by the breakdown of mica minerals in igneous rocks, begin to revert back to mica. of 1. 1. Slate is a low-grade metamorphic rock that forms from shale under pressure at temperatures of a few hundred degrees or so. Clay minerals in the shale, which originally formed by the breakdown of mica minerals in igneous rocks, begin to revert back to mica.