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Mineralpedia Details for Vauxite

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Vauxite

Vauxite

Named to honor George Vaux Jr., nephew of mineral collector William S. Vaux and himself a mineral collector and lawyer from Pennsylvania, USA. Vauxite is an alteration mineral derived from apatite and found in only two localities, the Siglo XX mine in Bolivia and the National Limestone Co. quarry in Pennsylvania.

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

Formula
Fe2+Al2(PO4)2(OH)2ยท6H2
Crystal System
Triclinic 
Crystal Habit
Tabular, Radial, Aggregates 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
sky blue, dark blue 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle 
Hardness
3.5 
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Vauxite from Huanuni mine, Dalance Prov., Oruro dept., Bolivia

Vauxite
            from Huanuni mine, Dalance Prov., Oruro dept., Bolivia
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Vauxite from Llallagua, Bolivia

Vauxite
            from Llallagua, Bolivia

Dark blue plates of Vauxite. I use to see this stuff all the time. Not so any longer.

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Vauxite from Siglo Viente mine, Llallagua, Bolivia

Vauxite
            from Siglo Viente mine, Llallagua, Bolivia

A blue thin plate of Vauxite with micro crystals less than 1mm. 

Click thumbnail images for larger view.

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