Itabirite identification and geology

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• Browse all rock identification entries — Compare this entry with the complete GeoMiner rocks collection.
• Previous: Ironstone — Sedimentary rock containing 15% iron, typically as siderite, hematite, or goethite. Important historical iron ore.
• Next: Jade (Nephrite rock) — Tough metamorphic rock composed of interlocking actinolite-tremolite fibers. One of two minerals called jade.
• Banded Iron Formation
• Tiger Iron
• Taconite

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

2026-02-10T20:36:47.803468+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 Itabirite?

Metamorphosed banded iron formation with alternating bands of recrystallized hematite/magnetite and quartz.

How can you identify Itabirite?

Compare several properties rather than relying on colour alone. This entry records rock type: Metamorphic; texture: Banded, foliated; grain size: Fine to medium; common minerals: Hematite, Magnetite, Quartz. Confirm an important identification with additional field tests or qualified laboratory work.

How does Itabirite form?

Forms from regional metamorphism of banded iron formations, recrystallizing both iron minerals and chert bands.

Where is Itabirite commonly found?

Itabira Brazil , Western Australia, Labrador; found in metamorphosed iron formations.

What is Itabirite commonly confused with?

Itabirite may be confused with Banded Iron Formation, Tiger Iron, Taconite. Compare multiple diagnostic properties because colour and surface appearance can overlap.