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It is usually a gray-ish color. It is foliated (the layers are in stripes). Hope I helped!
Gneiss is a foliated metamorphic rock, displaying bands of light and dark minerals.
Chert is non-foliated. Foliation is a term that is used mainly to describe the appearance or texture of metamorphic rock. Chert is a sedimentary rock, composed mostly of microcrystalline quartz.
Foliated rocks have layers in them. We often refer to the layers as Banding.
Coarse large grained crystals.
It is usually a gray-ish color. It is foliated (the layers are in stripes). Hope I helped!
Gneiss is a foliated metamorphic rock, displaying bands of light and dark minerals.
Fine grained has larger crystals and coarse grained has smaller crystals
Fine grained has larger crystals and coarse grained has smaller crystals
Gneiss is foliated and coarse grained
Metamorphic rock can be coarse grained or fine grained.
Gneiss, pronounced 'nice', is a coarse grained banded metamorphic rock.
Yes. Exactly, they do have both, fine grained and coarse grained rocks.
Chert is non-foliated. Foliation is a term that is used mainly to describe the appearance or texture of metamorphic rock. Chert is a sedimentary rock, composed mostly of microcrystalline quartz.
Fine grained rock exhibits a non-visible or nearly non-visible crystalline structure on a fractured surface. On the opposite end, a coarse grained rock exhibits mineral crystals of the rock's constituents on a fractured surface. The larger the crystals, the coarser grained is the rock. Basalt would be an example of a fine grained rock. Granite would be an example of a coarse grained rock.
Metamorphic rock can be coarse grained or fine grained.
Foliated rocks have layers in them. We often refer to the layers as Banding.