mineral
Talc
Mg3Si4O10(OH)2
AI-generated identification · may be incorrectMohs hardness of 1, very soft and greasy feel. White to pale green, pearly to greasy luster, monoclinic crystal system.
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Physical properties
Mohs hardness of 1, very soft and greasy feel. White to pale green, pearly to greasy luster, monoclinic crystal system.
Formation & geological history
Formed through the metamorphism of magnesium-rich rocks like dunite and serpentine by hydrothermal fluids.
Uses & applications
Widely used in manufacturing cosmetics, ceramics, paper, paint, and plastics.
Geological facts
Talc is the softest known mineral on the Mohs scale and can be easily scratched with a fingernail.
Field identification & locations
Identify by its extreme softness, soapy feel, and pale color; commonly found in metamorphic terranes worldwide.
