Cauk

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Cauk
Sedimentary rock
The Needles.jpg
The Needles, situatit off the Isle o Wight, are pairt o the extensive Soothren Ingland Cauk Formation.
Composition
calcite (calcium carbonate)

Cauk is a saft, white, porous, sedimentary carbonate rock, a form o limestane componed o the mineral calcite.