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Mineralpedia Details for Hubnerite

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Hubnerite

Hubnerite

Named for Hüttenmeister Adolph Hübner, metallurgist from Freiberg, Germany. Widespread and occurs most commonly in high temperature vein deposits. A characteristic mineral of numerous mesothermal to epithermal ore vein deposits. Less commonly in pegmatites and Sn - W deposits. Crystals appear brownish black but are usually deep red as long bladed to thick tabular in parallel or divergent groups, striated needles. Notable localities include Sweet Home mine and at Silverton in Colorado; Pasto Bueno, Peru; Reinbold pegmatite, near Hill City, SD; Zongo Valley pegmatites, La Paz Dept., Bolivia; and Horni Slavkov, Bohemia, Czech Republic. Hubnerite is the less common end-member of the Wolframite series.

Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004).

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/hubnerite.pdf

Formula
Mn2+WO4 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Lamellar, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
brown, reddish brown, brownish black 
Streak
reddish brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
4.5 
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Hubnerite from Black Pine mine, Philipsburg, Granite Co., Montana, United States

Hubnerite
            from Black Pine mine, Philipsburg, Granite Co., Montana, United States

Dark brownish red, thin platy crystals to 3cm embedded in Quartz matrix.

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Hubnerite from Two Bit mine, Pennington Co., South Dakota, United States

Hubnerite
            from Two Bit mine, Pennington Co., South Dakota, United States

Thin bladed brownish black crystals to 4cm in Quartz.

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Hubnerite from Pasto Bueno, Pampas dist., Pallasca, Ancash, Peru

Hubnerite
            from Pasto Bueno, Pampas dist., Pallasca, Ancash, Peru

Black or deep red thich tabular crytsals to 4cm with Quartz.

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Hubnerite from Adams mine, Silverton, San Juan Co., Colorado, United States

Hubnerite
            from Adams mine, Silverton, San Juan Co., Colorado, United States

Thin bladed reddish crystals to 1.5cm.

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Hubnerite from near Potosi Springs, Montana, United States

Hubnerite
            from near Potosi Springs, Montana, United States

A cut specimen which shows rich mineralization od red blades of Hubnerite, an ore of tungsten. Crystals are embedded and reach 5cm. A sticker shows the origin and date of 1951.

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