Check the listing for details. talc - soft white talc - hand/display specimen. Listed at 10.45 USD. Mining began there around 1910. There are at least 43 talc mines and prospects in the region. Talc's hardness is 1 on the Mohs' scale, and its perfect cleavage in one direction (like mica except more loosely attached) allows tiny flakes of talc to easily slip past each other, giving it a smooth or greasy feel.