Talc Lump/Soap Stone
Talc is Hydrated Magnesium Silicate, it is a versatile material, also known as steatite or soapstone with the chemical formulation of Mg3 Si4 O10 (OH)2.
An ornamental and heat, acid and electrically-resistant stone (soapstone) used as counter tops, electrical switchboards, carvings etc, used as an ingredient in paints, rubber, roofing materials, ceramics and insecticides. Most commonly known as the primary ingredient in talcum powder
Color is snow white to almost silver.
Luster is dull to pearly or greasy.
Transparency crystals are translucent and masses are opaque.
Crystal System is monoclinic; 2/m.
Hardness is 1 (can leave mark on paper)
Specific Gravity is 2.7 – 2.8 (average)