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Lazulite with Siderite

#BN47973

Lazulite with Siderite

#BN47973
Availability
Sold
Size
9.5 x 4 x 2 cm - Cabinet 
Formula
MgAl2(PO4)2(OH)2 (RRUFF)
Locality
Rapid Creek, Yukon Territory, Canada
Tagged
phosphate

Lustrous, beautiful single crystals to Lazulite to 6mm. There are at least ten crystals over 4mm with numerous smaller. The goldish brown crystals are good rhombic Siderite crystals.

Lazulite

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 

Data courtesy of Webmineral.

Collection
Dr. Buford Nichols Collection
Mineralpedia
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