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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
- WebMineral
- View Lazulite
- Mindat
- View Lazulite
Lazulite from Locality 1 (area A), Rapid Creek, Yukon, Canada

Dark blue crystals of Lazulite to 4mm.
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.
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!
Lazulite from Graves Mountain, Lincoln Co., Georgia, United States
Deep blue, lustrous Lazulite crystals to 2mm in vugs of massive Lazulite.
Lazulite from Mama River Basin, Buriatia, Prebaikalia,Siberia, Russia
Dark blue crystal grains to 6mm.
Lazulite from Champion mine, Mono Co., California, United States
Massive blue Lazulite with Albite. Collected in 1945 by Hampson.