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Mixed Minerals

Friday, 04 August 2017 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including strengite and more from places like Leveäniemi Iron mine, Svappavaara, Lappland, Sweden.

Strengite

#BN47257
Locality
Leveäniemi Iron mine, Svappavaara, Lappland, Sweden 
Formula
Fe3+PO4·2H2
Availability
Sold
Size
5 x 5.5 x 2 cm - Sm Cabinet 
Tagged
phosphate  

Stunning purple crystal groups of Strengite. The groups are very large and the crystals sharp and distinct to 8mm. I have not seen Strengite groups of this size from any deposit. They are probably out there but, I have not seen them. Strengite occurs all over the world, but it is still uncommon and usually found in sedimentary phosphate deposits and pegmatites. But they also occur in iron ore such as Svappavaara.  This is wonderful specimen and deserving of a good, discriminating collector. 


Strengite

Formula
Fe3+PO4·2H2
Crystal System
Orthorhombic 
Crystal Habit
Spherical, Radial, Botryoidal 
Cleavage
Good, Poor, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale violet, deep violet, red, carmine red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5 
Collection
Dr. Buford L. Nichols Collection
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