Assertion: talc | /r/HasProperty | known mineral
Facets:
Source sentences:
text: Yet talc, the softest known mineral, is dug from the ground, where it can keep bad company.
text: Talc, the softest known mineral, has a wide range of uses in cosmetic, pharmaceutical and food products, but talc deposits are sometimes contaminated by naturally-occurring asbestos.
text: It is a form of talc, the softest known mineral, and it is used in a wide range of industries.