Definition
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.
Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay
History
Origin
Central Europe
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Discoverer
Unknown
Unknown
Etymology
From Latin granulum, a little grain or fine grained
From English clay and stone as the rock contains more amount of clay
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
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Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock