mineral
Talc
Mg3Si4O10(OH)2
AI-generated identification · may be incorrectMohs hardness of 1, white to greenish color, greasy luster, monoclinic crystal system, perfect cleavage.
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Physical properties
Mohs hardness of 1, white to greenish color, greasy luster, monoclinic crystal system, perfect cleavage.
Formation & geological history
Formed through the metamorphism of magnesium-rich rocks like serpentinite and dolomite under hydrothermal conditions.
Uses & applications
Used extensively in manufacturing paper, paint, plastics, ceramics, and cosmetics like talcum powder.
Geological facts
Talc is the softest known mineral on the Mohs scale, easily scratched by a fingernail.
Field identification & locations
Identified easily by its extreme softness and greasy feel; found globally in metamorphic belts.
