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0 item @ $0.00  

Mixed Minerals

Sunday, 19 May 2019 12:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including ferristrunzite, froodite, gustavite, luanheite, machatschkiite, and nadorite and more from places like Mont-des-Groseillers, Blaton, Mons, Henegouwen, Belgium, Oktyabrskiy mine, Talhakh, Noril'sk, Siberia, Russia, Arsenic mine, Lower Rotgülden lake, Rotgülden, Salzburg, Austria, Los Bordos mine, Elisa de Bordos, Copiapo, Atacama, Chile, near Hagendorf, Bavaria, Germany, and Djebel Nador, Constantine prov., Algeria.

Ferristrunzite

#49612
Locality
Mont-des-Groseillers, Blaton, Mons, Henegouwen, Belgium 
Formula
Fe3+Fe3+2(PO4)2(OH)3·5H2
Availability
Available
Price
$150.00
Size
7 x 3.5 x 2 cm - Sm Cabinet 
Tagged
phosphate  

This is an exceptional Ferristrunzite specimen. The light yellow to white fibrous crystals are in sprays to about 1.5mm. The crystals are very distinct with good definition unlike most that you may see on the market. 


Ferristrunzite

Formula
Fe3+Fe3+2(PO4)2(OH)3·5H2
Crystal System
Triclinic 
Crystal Habit
Acicular, Aggregates 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
brownish yellow, light yellow 
Streak
light yellow 
Class
Triclinic 
Hardness
Collection
Dr. Buford Nichols Collection
SOLD
Froodite - 50382
Froodite - 50382

Froodite

with Chalcopyrite & Pentlandite - #50382
Locality
Oktyabrskiy mine, Talhakh, Noril'sk, Siberia, Russia 
Formula
PdBi2 
Availability
Sold
Size
2.5 x 2.5 x 0.7 cm - Thumbnail 

Microprobe mount with a 1.5cm piece showing silvery white reflections of Froodite. 


Froodite

Formula
PdBi2 
Crystal System
Monoclinic 
Cleavage
Perfect, Good, None 
Luster
Metallic 
Color
gray 
Streak
black 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
2.5 
On Dakota Matrix
Previously Sold Froodite
On Dakota Matrix
Other Available Froodite
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View Froodite
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Gustavite

with Pavonite, Bismuth, Bismuthinite - #50354
Locality
Arsenic mine, Lower Rotgülden lake, Rotgülden, Salzburg, Austria 
Formula
AgPbBi3S6 
Availability
Available
Price
$95.00
Size
5 x 4.5 x 4 cm - Miniature 
Tagged
sulfide , silver  

An ex-Dr. Werner Paar specimen with said minerals. The large silvery group to 1.5cm is probably the Bismuthinite, the Gustavite and Pavonite are probably sub-microscopic or very micro at best. 


Gustavite

Formula
AgPbBi3S6 
Crystal System
Orthorhombic 
Crystal Habit
Tabular 
Cleavage
Distinct, Distinct, None 
Luster
Metallic 
Color
steel gray 
Streak
gray 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5 
Mineralpedia
View Gustavite
On Dakota Matrix
Previously Sold Gustavite
On Dakota Matrix
Other Available Gustavite
WebMineral
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Mindat
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Luanheite

#50723
Locality
Los Bordos mine, Elisa de Bordos, Copiapo, Atacama, Chile 
Formula
Ag3Hg 
Availability
Sold
Size
1.7 x 2 x 0.3 cm - Thumbnail 
Tagged
silver  

Rich specimen but small and loaded with tiny sheets and veinlets of this rare silver-mercury mineral.


Luanheite

Formula
Ag3Hg 
Crystal System
Hexagonal 
Crystal Habit
Granular, Tabular 
Cleavage
None, None, None 
Luster
Metallic 
Color
gray white, black 
Streak
grayish black 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Malleable 
Hardness
2.5 
Mineralpedia
View Luanheite
On Dakota Matrix
Previously Sold Luanheite
On Dakota Matrix
Other Available Luanheite
WebMineral
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Mindat
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Machatschkiite

#PD33098
Locality
near Hagendorf, Bavaria, Germany 
Formula
Ca6(AsO4)(AsO3OH)3PO4·15H2
Availability
Sold
Size
1.7 x 1.1 x 0.6 cm - Thumbnail 
Tagged
phosphate , arsenate  

Colorless, flat prismatic crystals to 3mm.


Machatschkiite

Formula
Ca6(AsO4)(AsO3OH)3PO4·15H2
Crystal System
Trigonal 
Crystal Habit
Pseudo Rhombohedral 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
colorless 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Conchoidal 
Hardness
2-3 
Collection
Don Phillips Collection

Nadorite

#50364
Locality
Djebel Nador, Constantine prov., Algeria 
Formula
PbSb3+O2Cl 
Availability
Sold
Size
3.5 x 2.5 x 2 cm - Miniature 
Special Info
Type Locality 

Bladed crystals of Nadorite to 2mm open vugs of massive Nadorite. Ex. Mike Grobem specimen with the usual inked on label on white background. Also comes with an older label and Mike's special plastic tag.


Nadorite

Formula
PbSb3+O2Cl 
Crystal System
Orthorhombic 
Cleavage
Perfect, None, None 
Luster
Adamantine - Resinous 
Color
brown, brownish yellow, grayish brown, yellow 
Streak
yellow white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5-4 
Special Info
Type Locality
Mineralpedia
View Nadorite
On Dakota Matrix
Previously Sold Nadorite
On Dakota Matrix
Other Available Nadorite
WebMineral
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Mindat
View Nadorite

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