Definition
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Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.
From medieval Latin, talcum
Fine Grained Rock, Opaque Rock
Whiteschist is an uncommon rock type belonging to a class of metamorphic rock, this is formed at high-ultra-high pressures
From French schiste, Greek skhistos i.e. split
Fine Grained Rock, Medium Grained Rock, Opaque Rock