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Lithiophilite

#41595

Lithiophilite

#41595
Availability
Sold
Size
6 x 5 x 3.5 cm - Sm Cabinet 
Formula
LiMn2+PO4 (RRUFF)
Locality
Midnight Owl mine, Yavapai Co., Arizona, United States
Tagged
phosphate , pegmatite mineral

Pink compact massive mineral. This is an old David Shannon stock specimen in which he states that the Lithiophillite is a very pure Mn end member.

This mine is located in the White Picacho district of the Wickenburg Mountains of Maricopa and Yavapai Counties. The district lies in what Richard Jahns refered to as the Arizona Pegmatite Belt which trends in a northwesterly direction south of and adjacent to the Colorado Plateau. Please refer to the Univ. of Arizona Bulletin No. 162 "Pegmatite Deposits of the White Picacho District" published in 1952. 

Both Jahns and David London have done much work on these pegmatites. The pegmatites are basically lithium rich and yield secondary phosphate minerals from lithiophilite. 

Lithiophilite

Formula
LiMn2+PO4 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic 
Cleavage
Perfect, Very Good, Imperfect 
Luster
Vitreous - Resinous 
Color
brown, yellowish brown, salmon, brownish, blackish 
Streak
gray white 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal - Uneven 
Hardness
4-5 

Data courtesy of Webmineral.

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