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0 item @ $0.00  

Mixed Minerals

Sunday, 08 September 2019 08:00 AM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including willemite, and wohlerite and more from places like Garpenberg Norra mine, Hedemora, Dalarna, Sweden, and Tvedalen, Larvik, Vestfold, Norway.

Willemite

with Calcite - #45160
Locality
Garpenberg Norra mine, Hedemora, Dalarna, Sweden 
Formula
Zn2SiO4 
Availability
Available
Price
$60.00
Size
7 x 4 x 4 cm - Sm Cabinet 
Special Info
Fluorescent 

Vividly fluorescent red Calcite with green Willemite in vein of metamorphosed rock. Excellent specimen.


Willemite

Formula
Zn2SiO4 
Crystal System
Trigonal 
Crystal Habit
Prismatic, Massive - Granular, Massive 
Cleavage
Poor, Poor, None 
Luster
Vitreous - Resinous 
Color
white, yellow, green, reddish brown, black 
Streak
white 
Class
Trigonal - Rhombohedral 
Fracture
Uneven 
Hardness
5.5 
Special Info
Fluorescent
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Previously Sold Willemite
On Dakota Matrix
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Wohlerite

with Microcline & Aegerine - #PD45972
Locality
Tvedalen, Larvik, Vestfold, Norway 
Formula
NaCa2(Zr,Nb)(Si2O7)(O,F)2 
Availability
Sold
Size
6 x 6 x 6 cm - Sm Cabinet 

Yellow-orange Wohlerite crystals to 1.5cm nicely aggregated in pegmatite matrix with red Eudialyte crystals (?) and white Microcline and black Aegerine.  Two nice older labels included with this specimen.


Wohlerite

Formula
NaCa2(Zr,Nb)(Si2O7)(O,F)2 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Tabular, Granular 
Cleavage
Distinct, Poor, Poor 
Luster
Vitreous - Greasy 
Color
yellow, dark yellow, gray, brown 
Streak
pale yellow 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Splintery 
Hardness
5.5-6 
Collection
Don Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Wohlerite
On Dakota Matrix
Other Available Wohlerite
WebMineral
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Mindat
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