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Marble (Dolomitic) identification and geology

Metamorphic rock formed from dolostone. Contains dolomite rather than calcite as the primary carbonate mineral. Texture: Granoblastic crystalline. Rock type: Metamorphic Non-foliated. Grain size: Medium to coarse. Parent rock: Dolostone. Minerals present: Dolomite, Calcite, Tremolite, Forsterite, Phlogopite. Formation: Forms from regional or contact metamorphism of dolomitic limestone/dolostone, recrystallizing dolomite. Common geological settings: Found in metamorphic carbonate sequences worldwide. Common look-alikes and related entries: Marble, Dolostone, Quartzite.

Sources, scope & corrections

These authoritative resources support category-level nomenclature, terminology, identification methods, and safety. When a specimen-specific safety warning appears, the public-health source listed here directly supports that precaution. They are not line-by-line citations for every other property on this entry, and natural specimens vary.

Editorial owner
GeoMiner
Last updated
2026-02-10T20:35:32.277952+00:00
Review status
Published; not independently peer-reviewed
  • Rocks — U.S. National Park Service. Authoritative overview of rock groups, the rock cycle, and geologic processes.
  • Can you identify my rock or mineral? — U.S. Geological Survey. Identification limitations and routes to in-person professional verification.

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Common questions

What is Marble Dolomitic?
Metamorphic rock formed from dolostone. Contains dolomite rather than calcite as the primary carbonate mineral.
How can you identify Marble Dolomitic?
Compare several properties rather than relying on colour alone. This entry records rock type: Metamorphic Non-foliated; texture: Granoblastic crystalline; grain size: Medium to coarse; common minerals: Dolomite, Calcite, Tremolite, Forsterite, Phlogopite. Confirm an important identification with additional field tests or qualified laboratory work.
How does Marble Dolomitic form?
Forms from regional or contact metamorphism of dolomitic limestone/dolostone, recrystallizing dolomite.
Where is Marble Dolomitic commonly found?
Found in metamorphic carbonate sequences worldwide.
What is Marble Dolomitic commonly confused with?
Marble Dolomitic may be confused with Marble, Dolostone, Quartzite. Compare multiple diagnostic properties because colour and surface appearance can overlap.

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