Soapstone meaning

sōpstōn
A soft metamorphic rock composed mostly of the mineral talc.
noun
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A compact, usually impure, massive variety of talc, used to make electrical insulators, stove linings, etc.
noun
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A soft metamorphic rock composed mostly of the mineral talc, but also including chlorite, pyroxene, and amphibole. It has a schistose texture and is greasy to the touch. Soapstone forms through the alteration of ferromagnesian silicate minerals during metamorphism.
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(geology) A soft rock, rich in talc, also containing serpentine and either magnetite, dolomite or calcite.
noun
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To scrub with soapstone.
verb
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Origin of soapstone

  • From its smooth soapy feel

    From American Heritage Dictionary of the English Language, 5th Edition