Ultramafic rock composed of olivine and orthopyroxene. A depleted mantle rock that has lost its basaltic component. Texture: Phaneritic. Rock type: Igneous Mantle. Grain size: Coarse. Minerals present: Olivine, Orthopyroxene, Chromite. Formation: Forms as residual mantle rock after partial melting extracts basaltic magma from peridotite. Common geological settings: Harz Mountains Germany , Oman ophiolite; found in ophiolites and mantle xenoliths. Common look-alikes and related entries: Peridotite, Dunite, Lherzolite.
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GeoMiner
Last updated
2026-03-30T14:39:31.308706+00:00
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Published; not independently peer-reviewed
Rocks — U.S. National Park Service. Authoritative overview of rock groups, the rock cycle, and geologic processes.
Ultramafic rock composed of olivine and orthopyroxene. A depleted mantle rock that has lost its basaltic component.
How can you identify Harzburgite?
Compare several properties rather than relying on colour alone. This entry records rock type: Igneous Mantle; texture: Phaneritic; grain size: Coarse; common minerals: Olivine, Orthopyroxene, Chromite. Confirm an important identification with additional field tests or qualified laboratory work.
How does Harzburgite form?
Forms as residual mantle rock after partial melting extracts basaltic magma from peridotite.
Where is Harzburgite commonly found?
Harz Mountains Germany , Oman ophiolite; found in ophiolites and mantle xenoliths.
What is Harzburgite commonly confused with?
Harzburgite may be confused with Peridotite, Dunite, Lherzolite. Compare multiple diagnostic properties because colour and surface appearance can overlap.
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