About Talc
Hydrated magnesium silicate, the softest known mineral, with a characteristic soapy feel. It's a very calming and soothing stone, promoting emotional balance, stress reduction, and a tranquil environment. (Steatite/Soapstone is massive talc).
Primary Hues
White, Grey, Green, Pale Green, Brown, Silver-White, very soft, greasy or soapy feel
Geological & Scientific Details
Talc is classified as a silicate mineral mineral which typically crystallizes in the monoclinic or triclinic[2] system. Its chemical formula is Mg3Si4O10(OH)2. Common crystal habits include foliated to fibrous masses, rare as platey to pyramidal crystals.
Key Geological Properties:
- Mineral Category: Silicate mineral
- Chemical Formula: Mg3Si4O10(OH)2
- IMA Symbol: Tlc[1]
- Crystal System: Monoclinic or triclinic[2]
- Predominant Geological Color: Light to dark green, brown, white, grey, colorless
- Crystal Habit: Foliated to fibrous masses, rare as platey to pyramidal crystals
- Cleavage: Perfect on {001} basal cleavage
- Luster: Waxy or pearly
- Streak: White jot to pearl black
- Diaphaneity: Translucent
Associated Minerals
- Serpentine
- Chlorite
- Dolomite
- Magnesite
- Tremolite
- Actinolite