Definition
Origin
Discoverer
Etymology
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Other Categories
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature
From French schiste, Greek skhistos i.e. split
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Mudstone is a fine-grained, dark gray sedimentary rock, which is formed from silt and clay and is similar to shale but has less laminations
From the English mud and stone, from low German mudde and stainaz
Fine Grained Rock, Opaque Rock