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Mixed Minerals

Friday, 28 June 2019 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including arsenopyrite, bornite, pavonite, rusakovite, scholzite, and silver and more from places like Mineral Hill mine, Crevasse dist., Park Co., Montana, United States, Bristol, Hartford Co., Connecticut, United States, Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina, Balasauskandyk V Deposit, S. Kazakhstan, Russia, Foote mine, Cleveland Co., North Carolina, United States, and White Pine mine, Ontonagon Co., Michigan, United States.

Arsenopyrite

in gold ore - #49098
Locality
Mineral Hill mine, Crevasse dist., Park Co., Montana, United States 
Formula
FeAsS 
Availability
Sold
Size
14 x 9 x 10 cm - Cabinet 
Tagged
ore mineral , sulfide  

Large, impressive chunk of Arsenopyrite in gold bearing ore. The polished end nicely shows the Arsenopyrite mineralization. The largest crystal in the mass is a whopping 8.5cm across! 


Arsenopyrite

Formula
FeAsS 
Crystal System
Monoclinic 
Crystal Habit
Striated, Euhedral Crystals, Prismatic 
Cleavage
one distinct 
Luster
Metallic 
Color
tin white, light steel gray 
Streak
black 
Geological Setting
Widespread. Most commonly found in medium to high temperature veins.  
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5 to 6 
Collection
Chris van Laer Collection

Bornite

in Quartz - #49112
Locality
Bristol, Hartford Co., Connecticut, United States 
Formula
Cu5FeS4 
Availability
Available
Price
$95.00
Size
11.5 x 9 x 8.5 cm - Cabinet 
Tagged
sulfide , copper , ore specimen  

Massive bluish grey Bornite veins with Quartz.


Bornite

Formula
Cu5FeS4 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Reniform, Granular 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
copper red, bronze brown, purple 
Streak
grayish black 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
Collection
Chris van Laer Collection
Mineralpedia
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Previously Sold Bornite
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Pavonite

with tellurian Canfieldite - #50383
Locality
Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina 
Formula
AgBi3S5 
Availability
Sold
Size
3.5 x 2.5 x 2 cm - Miniature 
Tagged
sulfide , silver  
Special Info
Microprobed 

Slender, bladed crystals of silvery Pavonite with granular grey, metallic Canfieldite. Excellent specimen from the Dr. Warner Paar collection. Sawed on two sides for microprobe work.


Pavonite

Formula
AgBi3S5 
Crystal System
Monoclinic 
Crystal Habit
Massive, Bladed 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
lead gray, tin white 
Streak
lead gray 
Class
Monoclinic - Prismatic 
Hardness
Special Info
Microprobed
On Dakota Matrix
Previously Sold Pavonite
On Dakota Matrix
Other Available Pavonite
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View Pavonite
Mindat
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SOLD
Rusakovite - BN50993
Rusakovite - BN50993

Rusakovite

#BN50993
Locality
Balasauskandyk V Deposit, S. Kazakhstan, Russia 
Formula
(Fe,Al)5(VO4)2(OH)9·3H2
Availability
Sold
Size
2.5 x 1.3 x 1.4 cm - Thumbnail 
Tagged
vanadium  

Bright orange earthy coatings. Rare.


Rusakovite

Formula
(Fe,Al)5(VO4)2(OH)9·3H2
Crystal System
Monoclinic 
Crystal Habit
Reniform, Encrustations 
Luster
Earthy (Dull) 
Color
yellow orange, reddish yellow 
Streak
ochraceous 
Class
Monoclinic 
Hardness
1.5-2 
Collection
Dr. Buford Nichols Collection

Scholzite

#50975
Locality
Foote mine, Cleveland Co., North Carolina, United States 
Formula
CaZn2(PO4)2·2H2
Availability
Available
Price
$35.00
Size
6.5 x 4 x 3 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

A 3mm vug with two clusters of white, stubby micro Scholzite associated with Spodumene.


Scholzite

Formula
CaZn2(PO4)2·2H2
Crystal System
Orthorhombic 
Cleavage
Parting, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray white, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Mineralpedia
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Mindat
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Silver

with Copper - #50996
Locality
White Pine mine, Ontonagon Co., Michigan, United States 
Formula
Ag 
Availability
Sold
Size
11 x 5.5 x 5 cm - Cabinet 
Tagged
native element  

Large Copper nugget with rounded Silver. 


Silver

Formula
Ag 
Crystal System
Isometric 
Crystal Habit
Arborescent, Dendritic, Massive 
Cleavage
None, None, None 
Luster
Metallic 
Color
silver white, gray white, gray 
Streak
silver white 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection
Mineralpedia
View Silver
On Dakota Matrix
Previously Sold Silver
On Dakota Matrix
Other Available Silver
WebMineral
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Mindat
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