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Mineralpedia Details for Lazulite

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Lazulite

Lazulite

Named for the German word lazurstein, which is influenced by Medieval Latin, meaning “blue stone,” or possibly after the Arabic word for “heaven.” An uncommon mineral that occurs disseminated in quartzite, schist, and in quartz veins, in granite pegmatites, and as an alluvial and colluvial mineral. It can be found in Austria, Sweden, the USA, Canada, Brazil, Madagascar, and gem-quality crystals from Pakistan, among many other minor localities.

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

Formula
MgAl2(PO4)2(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Massive - Granular, Pyramidal 
Cleavage
Indistinct, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
blue, blue green, light blue, black blue 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
5-6 
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Lazulite from Locality 1 (area A), Rapid Creek, Yukon, Canada

Lazulite
            from Locality 1 (area A), Rapid Creek, Yukon, Canada

Dark blue crystals of Lazulite to 4mm.

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LAZULITE from Werfen, Salzburg, Austria

LAZULITE
            from Werfen, Salzburg,  Austria

A good representative specimen of the rich blue Lazulite fround in this district. There is one nice crystal to 5mm. Metamorphic rock matrix.

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Lazulite from Crosscut Creek, Rapid Creek, Yukon Territory, Canada

Lazulite
            from Crosscut Creek, Rapid Creek, Yukon Territory, Canada

Deep beautiful blue lustrous lazulite crystals to 8mm. This is one of the better Lazulite that I have seen from here. It's very difficult to photograph!

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Lazulite from Graves Mountain, Lincoln Co., Georgia, United States

Lazulite
            from Graves Mountain, Lincoln Co., Georgia, United States

Deep blue, lustrous Lazulite crystals to 2mm in vugs of massive Lazulite.

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Lazulite from Mama River Basin, Buriatia, Prebaikalia,Siberia, Russia

Lazulite
            from Mama River Basin, Buriatia, Prebaikalia,Siberia, Russia

Dark blue crystal grains to 6mm.

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