'Soapstone, used as an electrical insulator, is a greenish-gray variety of this soft mineral'
talc
ROCKS & STUFF: Soapstone, used as an electrical insulator, is a greenish-gray variety of this soft mineral
Soapstone, used as an electrical insulator, is a greenish-gray variety of this soft mineral
Soapstone, used as an electrical insulator, is a greenish-gray variety of this soft mineral
ROCKS & STUFF
talc
ROCKS & STUFF