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Mineralpedia Details for Diaboleite

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Diaboleite

Diaboleite

Named in reference to the minerals difference from boleite after the Greek prefix dia-, meaning “different,” “separate,” or “apart from.” Diaboleite is a rare mineral that can be found in localities in England, Germany, Italy, Greece, the United States, Iran, Australia, Chile, and Russia, among just a couple others. Diaboleite occurs in oxidized manganese ore, as a secondary mineral in highly oxidized lead-copper ore, and on slag that has been exposed to seawater. Diaboleite is completely soluble in nitric acid.

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

Formula
CuPb2Cl2(OH)4 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Encrustations, Granular 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
dark blue, bright sky blue 
Streak
blue 
Class
Tetragonal - Ditetragonal Pyramidal 
Fracture
Conchoidal 
Hardness
2.5 
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Diaboleite from Rožná dep., Vysočina, Moravia, Czech Republic

Diaboleite
            from Rožná dep., Vysočina, Moravia, Czech Republic

Bright blue Diaboleite crust on matrix.

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Diaboleite from Chah-Khouni mine, Anarak dist, Esfahan, Iran

Diaboleite
            from Chah-Khouni mine, Anarak dist, Esfahan, Iran

Blue microcrystalline Diaboleite covering areas of matrix. Associated with very tiny brown Iranite microcrystals.

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Diaboleite from Rowley mine, Maricopa Co., Arizona, United States

Diaboleite
            from Rowley mine, Maricopa Co., Arizona, United States

Very rich specimen loaded with blue crystalline Diaboleite in solution cavities of Barite.

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