How can you identify Norite?

Compare several properties rather than relying on colour alone. This entry records rock type: Igneous Intrusive; texture: Phaneritic; grain size: Coarse; common minerals: Plagioclase, Orthopyroxene, Clinopyroxene minor, Olivine. Confirm an important identification with additional field tests or qualified laboratory work.

What is Norite commonly confused with?

Norite may be confused with Gabbro, Diorite, Troctolite. Compare multiple diagnostic properties because colour and surface appearance can overlap.

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Norite identification and geology

Variety of gabbro distinguished by having orthopyroxene hypersthene instead of clinopyroxene as the dominant pyroxene. Texture: Phaneritic. Rock type: Igneous Intrusive. Grain size: Coarse. Minerals present: Plagioclase, Orthopyroxene, Clinopyroxene minor, Olivine. Formation: Crystallizes from mafic magma in layered intrusions and impact melt sheets. Common geological settings: Bushveld Complex, Sudbury impact melt , Norway; found in layered intrusions. Common look-alikes and related entries: Gabbro, Diorite, Troctolite.

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Gabbro
Diorite
Troctolite

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: 2026-03-30T14:38:09.438416+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 Norite?: Variety of gabbro distinguished by having orthopyroxene hypersthene instead of clinopyroxene as the dominant pyroxene.
How can you identify Norite?: Compare several properties rather than relying on colour alone. This entry records rock type: Igneous Intrusive; texture: Phaneritic; grain size: Coarse; common minerals: Plagioclase, Orthopyroxene, Clinopyroxene minor, Olivine. Confirm an important identification with additional field tests or qualified laboratory work.
How does Norite form?: Crystallizes from mafic magma in layered intrusions and impact melt sheets.
Where is Norite commonly found?: Bushveld Complex, Sudbury impact melt , Norway; found in layered intrusions.
What is Norite commonly confused with?: Norite may be confused with Gabbro, Diorite, Troctolite. Compare multiple diagnostic properties because colour and surface appearance can overlap.

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Norite identification and geology

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Sources, scope & corrections

Common questions