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Ore Minerals 6

Friday, 25 January 2019 05:00 PM

A wide array of excellent, rich, and large ore minerals from classical mining districts the world over will be presented.

Alabandite

#RW50100
Locality
Uchucchacua mine, Oyon prov., Lima dept., Peru 
Formula
Mn2+
Availability
Sold
Size
6 x 4 x 3 cm - Sm Cabinet 
Tagged
ore mineral , sulfide  

Alabandite is not the typical manganese ore. It usually does not occur in minable quantities. However, Alabandite may be in large quantities in epithermal polymetallic sulfide vein and also especially in low-temperature manganese deposits. 

This specimen contains partial dull black crystals to 1.4cm.

 


Alabandite

Formula
Mn2+
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Disseminated, Granular 
Cleavage
Perfect, Perfect, Perfect 
Luster
Sub Metallic 
Color
black, lead gray, brownish gray 
Streak
dark green 
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Robert J. Waidler Collection

Bismuth

#PD50163
Locality
Cobalt-Gowganda dist., Ontario, Canada 
Formula
Bi 
Availability
Sold
Size
6.5 x 5.5 x 4 cm - Sm Cabinet 
Tagged
ore mineral , native element  

Heavy mass compact crystals of Bismuth to 1mm or less throughout. Excellent rich specimen containing about 60% Bismuth.


Bismuth

Formula
Bi 
Crystal System
Trigonal 
Crystal Habit
Platy, Lamellar, Granular 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
silver white, pinkish white, red 
Streak
silver white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Uneven 
Hardness
2-2.5 
Collection
Don Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Bismuth
On Dakota Matrix
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Mindat
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Bixbyite

#RW47705
Locality
Wessels mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa 
Formula
Mn3+2O3 
Availability
Sold
Size
5 x 4 x 3 cm - Miniature 
Tagged
ore mineral  

This is a small chuck of shiny black and brittle Bixbyite, an ore of Manganese.


Bixbyite

Formula
Mn3+2O3 
Crystal System
Isometric 
Crystal Habit
Crystalline - Fine, Massive - Granular 
Cleavage
Imperfect, Imperfect, Imperfect 
Luster
Metallic 
Color
black 
Streak
black 
Class
Isometric - Diploidal 
Fracture
Uneven 
Hardness
6-6.5 
Collection
Robert J. Waidler Collection
Mineralpedia
View Bixbyite
On Dakota Matrix
Previously Sold Bixbyite
On Dakota Matrix
Other Available Bixbyite
WebMineral
View Bixbyite
Mindat
View Bixbyite

Bornite

#RW50101
Locality
Leonard mine, Butte dist., Silver Bow Co., Montana, United States 
Formula
Cu5FeS4 
Availability
Sold
Size
7 x 6 x 5 cm - Sm Cabinet 
Tagged
ore mineral , sulfide , copper  

Almost always massive. Fresh is copper red to pinchbeck brown tarnishing to a purple iridescence. This specimen is a chunk of sulfide Bornite ore.


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
Robert J. Waidler Collection
Mineralpedia
View Bornite
On Dakota Matrix
Previously Sold Bornite
On Dakota Matrix
Other Available Bornite
WebMineral
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Mindat
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SOLD
Bornite - RW50102
Bornite - RW50102

Bornite

with Chalcopyrite - #RW50102
Locality
Magma mine, Pinal Co., Arizona, United States 
Formula
Cu5FeS4 
Availability
Sold
Size
9 x 5 x 6 cm - Sm Cabinet 
Tagged
ore mineral , sulfide , copper  

Bornite is an important ore of Copper. It contains 63.3% copper. It is a common and widespread hydrothermal mineral. 

This specimen is a fantastic chunk of pure Bornite with a beautiful metallic violet color.


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
Robert J. Waidler Collection
Mineralpedia
View Bornite
On Dakota Matrix
Previously Sold Bornite
On Dakota Matrix
Other Available Bornite
WebMineral
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Mindat
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SOLD
Bornite - DH50105
Bornite - DH50105

Bornite

with Pyrite - #DH50105
Locality
Flambeau mine, Ladysmith, Rusk Co., Wisconsin, United States 
Formula
Cu5FeS4 
Availability
Sold
Size
7 x 5.5 x 3 cm - Sm Cabinet 
Tagged
ore mineral , sulfide , copper  

A chunk of dark violet purplish, massive Bornite with small Pyrite crystals throughout.


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
Dr. David Hess Collection
Mineralpedia
View Bornite
On Dakota Matrix
Previously Sold Bornite
On Dakota Matrix
Other Available Bornite
WebMineral
View Bornite
Mindat
View Bornite

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