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Home > Hausmannite

Hausmannite

Photo By Robert M. Lavinsky

Hausmannite

Hausmannite

Hausmannite

Hausmannite

Hausmannite

A species of Spinel Subgroup, Also known as Arseniodialytite, Manganese Oxides, Manganèse Oxydé Noir Brunâtre, Pyramidales Mangan-Erz

Hausmannite is rich in magnesium and occasionally appears as a genuinely captivating gemstone. When processed through Ferro manganese refining, it creates a dark brown color for pavers and bricks. In nuclear applications, hausmannite is used to promote proton travel, but only when dissolved in water. Specimens are highly collectible and range wildly in price.

Hardness:

5.5

Density:

4.84 g/cm³

General Info About Hausmannite

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Physical Properties of Hausmannite

Luster

Resinous, Dull, Sub-metallic

Diaphaneity

Opaque

Colors

Brown-black

Magnetism

Non-magnetic

Tenacity

Brittle

Cleavage

Good

Fracture

Uneven

Streak

Dark reddish brown, dark brown

Crystal System

Tetragonal

Hardness

5.5 , Soft

Density

4.84 g/cm³, Obviously Heavy Weight

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Chemical Properties of Hausmannite

Chemical Classification

Oxides

Formula

Mn²⁺Mn³⁺₂O₄

Elements listed

Mn, O

Common Impurities

Zn, Fe, Ca, Ba, Mg

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Rarity

Rare

Characteristics of Hausmannite

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Cultural Significance of Hausmannite

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Distribution of Hausmannite

The type locality is Oehrenstock (Öhrenstock), Ilmenau, Thuringian Forest, Thuringia, Germany, where it was first described in 1813. Locations include Batesville, Arkansas, US; Ilfeld, Germany; Langban, Sweden; and the Ural Mountains, Russia. High quality samples have been found in South Africa and Namibia where it is associated with other manganese oxides, pyrolusite and psilomelane and the iron-manganese mineral bixbyite.

Etymology of Hausmannite

Wilhelm Haidinger (1827) named it in honour of Johann Friedrich Ludwig Hausmann (1782–1859), Professor of Mineralogy, University of Göttingen, Germany.

Common Questions People Also Ask

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