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Mineralpedia Details for Laurelite

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Laurelite

Laurelite

Named after the type locality at the Grand Reef mine in Laurel Canyon in Arizona, USA.  Other localities for Laurelite are found in Italy and Greece. Laurelite occurs in isolated vugs in oxidized, low-temperature lead-copper-silver deposits. Associated minerals include grandreefite, pseudograndreefite, aravaipaite, galena, fluorite, anglesite, linarite, caledonite, and quartz. Laurlite will slowly dissolve in cold water.

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

Formula
Pb7F12Cl2 
Crystal System
Hexagonal 
Crystal Habit
Acicular, Prismatic, Aggregates 
Cleavage
Imperfect, None, None 
Luster
Silky 
Color
colorless 
Streak
white 
Class
Hexagonal - Trigonal Dipyramidal 
Fracture
Conchoidal 
Hardness
WebMineral
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Mindat
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Laurelite from Grand Reef mine, Graham Co., Arizona, United States

Laurelite
            from Grand Reef mine, Graham Co., Arizona, United States
Special Info
Confirmed XRD, Raman

Galena matrix with alteration pockets filled with snow white acicular crystals and compact fibrous or bladed crystals to 8mm of Laurelite.

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