Manganese oxyhydroxide forming lustrous black prismatic crystals. An important ore of manganese. Color: Black, steel-gray. Luster: Submetallic. Streak: Dark brown to black. Cleavage: Perfect in one direction. Hardness: 4. Transparency: Opaque. Crystal system: Monoclinic. Chemical formula: MnO OH. Specific gravity: 4.2-4.4. Formation: Forms from low-temperature hydrothermal solutions and in bog and lacustrine environments. Common geological settings: Germany Ilfeld , England, USA, South Africa; found in hydrothermal veins and bog deposits. Common look-alikes and related entries: Pyrolusite, Hematite, Goethite.
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IMA–CNMNC List of Mineral Names — International Mineralogical Association. Official mineral-name, nomenclature, and classification records.
Mineral ID Key — Mineralogical Society of America. Physical-property identification methods, repeat-testing guidance, and limitations.
Manganese oxyhydroxide forming lustrous black prismatic crystals. An important ore of manganese.
How can you identify Manganite?
Compare several properties rather than relying on colour alone. This entry records colour: Black, steel-gray; lustre: Submetallic; streak: Dark brown to black; Mohs hardness: 4; cleavage: Perfect in one direction; crystal system: Monoclinic; transparency: Opaque. Confirm an important identification with additional field tests or qualified laboratory work.
How does Manganite form?
Forms from low-temperature hydrothermal solutions and in bog and lacustrine environments.
Where is Manganite commonly found?
Germany Ilfeld , England, USA, South Africa; found in hydrothermal veins and bog deposits.
What is Manganite commonly confused with?
Manganite may be confused with Pyrolusite, Hematite, Goethite. Compare multiple diagnostic properties because colour and surface appearance can overlap.
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