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.
metamorphic rock. Rock which has been altered in appearance, density, and crystalline structure (and in some cases mineral composition) by high temperature and/or high pressure; e.g., slate is a metamorphic rock derived from shale.