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1 item @ $125.00  

Phosphosiderite

#FD13451

Phosphosiderite

#FD13451
Availability
Sold
Size
6.5 x 5 x 4 cm - Sm Cabinet 
Formula
Fe3+PO4·2H2O (RRUFF)
Locality
Stewart mine, Pala dist., San Diego Co., California, United States
Tagged
phosphate , pegmatite

Much like the other Phosphosiderite in this Special Edition, this specimen is a good example of secondary iron phosphate oxidation. Phosphosiderite (mono) and its dimorph, Strengite (ortho) are late stage products of hydrothermal attack on phosphate pods namely but not limited to triphylite, heterosite, or rockbridgeite. This matrix is probably heterosite.

Phosphosiderite

Formula
Fe3+PO4·2H2
Crystal System
Monoclinic 
Crystal Habit
Encrustations, Spherical 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous (Glassy) 
Color
colorless, purple, pink, red, red violet 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
3.5-4 

Data courtesy of Webmineral.

Collection
DeVIto Collection

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