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Montebrasite replaced by Scorzalite & Kulanite

#DL63836
SOLD
Montebrasite from Midnight Owl mine, Yavapai Co., Arizona, United States - DL63836
Montebrasite from Midnight Owl mine, Yavapai Co., Arizona, United States - DL63836

Montebrasite replaced by Scorzalite & Kulanite

#DL63836
Availability
Sold
Size
15 x 12 x 5 cm - Cabinet 
Formula
LiAlPO4(OH) (RRUFF)
Locality
Midnight Owl mine, Yavapai Co., Arizona, United States
Tagged
phosphate , pegmatite mineral , lithium

Large specimen, sawed and polished on one side to show the replacement of primary Montebrasite by aluminum phosphates, namely Scorzalite, Kulanite, Crandallite, and Brazilianite. The Scorzalite is the blue and the other phosphates are not readly seen. They were probably identified by EDS or XRD. Montebrasite is an ore of lithium and chiefly a pegmatite mineral. Other primary lithium minerals at the White Picacho district are Spodumene and Lithiophilite.

This specimen is illustrated on page 60 of "Pegmatites". 

Illustrated in London's book "Pegmatites"

Montebrasite

Formula
LiAlPO4(OH) 
Crystal System
Triclinic 
Crystal Habit
Massive - Granular, Prismatic 
Cleavage
Perfect, Good, Distinct 
Luster
Vitreous - Greasy 
Color
bluish, colorless, greenish, greenish gray, gray white 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Conchoidal 
Hardness
5.5-6 

Data courtesy of Webmineral.

Collection
Dr. David London Collection
Special Info
Illustrated in London's book "Pegmatites"
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