There is no regulation for supplements by the government, which has  led to a lot of controversy in the media lately. Since there is no  standard for regulating supplements,â¦ some companies have been under  scrutiny for being misleading on the ingredients in their  supplements. If you do choose to take a supplement, be sure to do  your research so that you know what is going into your body and how  it may react.
Shale is a fine-grained sedimentary rock that forms from the compaction of silt and clay-size mineral particles that we commonly call mud. This composition places shale in a category of sedimentary rocks known as mudstones.
Phyllite. is a fined grained metamorphic rock.Shale is the parent rock. It is made up of clay minerals. Shale can metamorphose into slate, phyllite, schist or gneiss depending on the degree of heat and pressure. Phyllite has a greater degree of metamorphism than slate but less than schist.neiss is a medium to course grained metamorphic rock.Shale is the typical parent rock. It is made up of clay minerals. Shale can metamorphose into slate, phyllite, schist or gneiss depending on the degree of heat and pressure. Gneiss has the greatest degree of metamorphism in this group.