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talc

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talc

Mineral, hydrous magnesium silicate. It occurs in tabular crystals, but the massive impure form, known as steatite or soapstone, is more common. It is formed by the alteration of magnesium compounds and is usually found in metamorphic rocks. Talc is very soft, ranked 1 on the Mohs scale of hardness. It is used in powdered form in cosmetics, lubricants, and as an additive in paper manufacture.

French chalk and potstone are varieties of talc. Soapstone has a greasy feel to it, and is used for carvings such as Inuit sculptures.



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? Mentioned in ? References in classic literature
 
To the two who stood watching while the darkness swallowed it up, it seemed a dream of wonder, with its talc of human energy, of things being done, of employment for thousands upon thousands of men, of opportunity and freedom, of life and love and joy.
The Jungle by Sinclair, Upton View in context
The Amritzar girl smiled; for she knew the talc was to win her approval.
Kim by Kipling, Rudyard View in context
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