Schist is medium grade metamorphic rock, formed by the metamorphosis of mudstone / shale, or some types of igneous rock, to a higher degree than slate, i.e. it.
A schist is a medium to coarse-grained, foliated, metamorphic rock typically containing muscovite, biotite, chlorite, and quartz. Feldspar, usually albite or.
Name, Garnet-Mica Schist. Texture, Foliated; Fine- to medium-grained. Composition, Muscovite, Biotite, Garnet, Quartz, Feldspar. Index Minerals, Garnet.
Hornfels: any metamorphic rock with nondirectional structure. Serpentine * . These rocks are formed by crushing and shearing with only minor recrystallization. If there are no . Phyllite is intermediate between slate and schist. It differs from.
Schist is a foliated metamorphic rock that contains abundant mica or other . From this photo it is easy to understand why clean, gem-quality garnets with no.
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