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New Mineral Additions

Thursday, 21 February 2013 12:00 PM

Introducing the "New Mineral Additions" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including minyulite and more from places like South Rasmussen Ridge mine, Soda Springs, Caribou Co., Idaho, United States.

NEW FIND
Minyulite - 35346
Minyulite - 35346

Minyulite

with Wavellite - #35346
Locality
South Rasmussen Ridge mine, Soda Springs, Caribou Co., Idaho, United States 
Formula
KAl2(PO4)2F·4H2
Availability
Available
Price
$40.00
Size
4.5 x 2.5 x 2 cm - Miniature 
Tagged
phosphate  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

The Minyulite is hard to discern from Wavellite visually. But as can be seen the Minyulite often crystallizes in longer, uneven acicular lengths as on this specimen. The Wavellite occurs in spheroidal clusters composed of tightly packed prismatic crystals of consistent lengths. The radial sections of the Wavellite show a very even growth radius.


Minyulite

Formula
KAl2(PO4)2F·4H2
Crystal System
Orthorhombic 
Crystal Habit
Acicular to prismatic crystals in radial goups. 
Cleavage
Perfect 
Luster
Silky 
Color
Mostly colorless, can also be green, white, light green 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Uneven 
Hardness
3.5 
Special Info
XRD Confirmed
Special Info
EDS Confirmed
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