Number 28

Color--------------------White

Luster------------------Nonmetallic, greasy to pearly

Streak------------------White

Hardness---------------1

Cleavage/--------------Cleavage, basal but hard to tell
Fracture

S.G.-----------------------2.6 - 2.8

Special Properties------Soapy feel to the touch.

Formula-------------------Mg3Si4O10(OH)2

Mineral name------------Talc

Family---------------------Silicates

Uses-----------------------Cosmetics and powder

Talc