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Marble is a non-foliated metamorphic rock which is composed of recrystallized carbonate which is formed when limestone is exposed to high temperatures and pressures over a long time
From the Greek marmaros, shining stone and also from the English word marmoreal meaning marble-like
Durable Rock, Medium Hardness Rock
Medium Grained Rock, Opaque Rock
Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay
From English clay and stone as the rock contains more amount of clay
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock