PCOG LEC FINALS: Source: a mineral with perfect cleavage and soapy feel

Occurs as foliated to fibrous masses, coarse granular at times or fine or cryptocrystalline masses.

Question

Source:  a mineral with perfect cleavage and soapy feel

Occurs as foliated to fibrous masses, coarse granular at times or fine or cryptocrystalline masses.

LEIGHTON DWIGHT OBILLOS · Accepted Answer

TALC  : H2Mg3(SiO3)4 or Mg3Si4O10(OH)2:

Syn:  French chalk, talcum

Source: a mineral with perfect cleavage and soapy feel Occurs as foliated to fibrous masses, coarse granular at times or fine or cryptocrystalline masses.