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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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