Soft metamorphic rock composed primarily of talc. Has a soapy feel and is easily carved. Used since antiquity. Texture: Massive, soft. Rock type: Metamorphic. Grain size: Fine. Parent rock: Ultramafic rock/Dolomite. Minerals present: Talc, Chlorite, Magnetite, Amphibole. Formation: Forms from hydrothermal alteration of ultramafic rocks or by metamorphism of siliceous dolomites. Common geological settings: India, Brazil, Finland, Virginia USA ; found in metamorphosed ultramafic and carbonate rocks. Common look-alikes and related entries: Serpentinite, Talc schist, Marble.
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Last updated
2026-03-30T14:39:10.545207+00:00
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Rocks — U.S. National Park Service. Authoritative overview of rock groups, the rock cycle, and geologic processes.
Soft metamorphic rock composed primarily of talc. Has a soapy feel and is easily carved. Used since antiquity.
How can you identify Soapstone?
Compare several properties rather than relying on colour alone. This entry records rock type: Metamorphic; texture: Massive, soft; grain size: Fine; common minerals: Talc, Chlorite, Magnetite, Amphibole. Confirm an important identification with additional field tests or qualified laboratory work.
How does Soapstone form?
Forms from hydrothermal alteration of ultramafic rocks or by metamorphism of siliceous dolomites.
Where is Soapstone commonly found?
India, Brazil, Finland, Virginia USA ; found in metamorphosed ultramafic and carbonate rocks.
What is Soapstone commonly confused with?
Soapstone may be confused with Serpentinite, Talc schist, Marble. Compare multiple diagnostic properties because colour and surface appearance can overlap.
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