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1 item @ $40.00  

Ore Minerals part 2

Monday, 07 August 2023 03:30 PM

Introducing the "Ore Minerals part 2" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including acanthite, alabandite, bornite, carnotite, columbite-(fe) and more from places like Bulldog mine, Creede dist., Mineral Co., Colorado, United States, Trench mine, Santa Cruz Co., Arizona, United States, Thunderbird mine, Ouray Co., Colorado, United States, Temple Mountain, Emery Co., Utah, United States, Etta mine, Pennington Co., South Dakota, United States, and Sodalite quarry, Bancroft, Canada.

Acanthite

with Silver - #RW62068
Locality
Bulldog mine, Creede dist., Mineral Co., Colorado, United States 
Formula
Ag2
Availability
Sold
Size
22 x 16.5 x 1 cm - Cabinet 
Tagged
ore mineral , sulfide , silver  

Slab of dark grey Acanthite, Pyrite, Baryte and minor Galena. A slab, such as this, is great for studying the paragenesis, relationships between all the minerals and  identification to name a few.


Acanthite

Formula
Ag2
Crystal System
Monoclinic 
Crystal Habit
Blocky, Skeletal, Arborescent 
Cleavage
poor to none 
Luster
Metallic 
Color
lead gray, gray, iron black 
Streak
shining black 
Class
Monoclinic - Prismatic 
Fracture
Sectile 
Hardness
2-2.5 
Mineralpedia
View Acanthite
On Dakota Matrix
Previously Sold Acanthite
On Dakota Matrix
Other Available Acanthite
WebMineral
View Acanthite
Mindat
View Acanthite

Alabandite

#RW62247
Locality
Trench mine, Santa Cruz Co., Arizona, United States 
Formula
Mn2+
Availability
Sold
Size
7 x 4.5 x 4.5 cm - Sm Cabinet 
Tagged
ore mineral  

Dull black interlocking crystals of Alabandite, a manganese ore mineral.


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

Bornite

#AH59242
Locality
Thunderbird mine, Ouray Co., Colorado, United States 
Formula
Cu5FeS4 
Availability
Sold
Size
10 x 7 x 4 cm - Cabinet 
Tagged
sulfide , copper , ore specimen  

A solid chunk of Bornite exhibiting nice purple and blue iridescence. This is a mine hardly ever seen on the market.


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
Arnold G Hampson Collection
Mineralpedia
View Bornite
On Dakota Matrix
Previously Sold Bornite
On Dakota Matrix
Other Available Bornite
WebMineral
View Bornite
Mindat
View Bornite

Carnotite

#AH62252
Locality
Temple Mountain, Emery Co., Utah, United States 
Formula
K2(UO2)2(VO4)2·3H2
Availability
Sold
Size
9 x 6 x 5 cm - Sm Cabinet 
Tagged
ore mineral  
Special Info
Radioactive!! 

Cabinet size chunk of nearly all Carnotite. It is vivid yellow.


Carnotite

Formula
K2(UO2)2(VO4)2·3H2
Crystal System
Monoclinic 
Crystal Habit
Earthy, Encrustations, Platy 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
yellow, golden yellow, greenish yellow 
Streak
light yellow 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection
Special Info
Radioactive!!
SOLD
Columbite-(Fe) - 56322
Columbite-(Fe) - 56322

Columbite-(Fe)

#56322
Locality
Etta mine, Pennington Co., South Dakota, United States 
Formula
Fe2+Nb2O6 
Availability
Sold
Size
7 x 5 x 2.3 cm - Sm Cabinet 
Tagged
ore mineral , niobium  

Basically a large "chunk" of Columbite from one of the most famous pegmatites in the world. The Etta mine produced lithium in the early years and eventually was known as a tin mine. Although it produced a little tin, it never survived as it was embroiled in one of the world's greatest mining scams. 

The specimen has one good flat face and has a little white cleavandite attached from its former and typical matrix.


Columbite-(Fe)

Formula
Fe2+Nb2O6 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Striated 
Cleavage
Distinct, None, None 
Luster
Sub Metallic 
Color
black, brownish black 
Streak
blackish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
SOLD
Columbite-(Fe) - AH62254
Columbite-(Fe) - AH62254

Columbite-(Fe)

#AH62254
Locality
Sodalite quarry, Bancroft, Canada 
Formula
Fe2+Nb2O6 
Availability
Sold
Size
8 x 6 x 3.5 cm - Sm Cabinet 
Tagged
ore specimen , pegmatite mineral  

Large specimen of malformed black Columbite attached to pegmatite matrix.


Columbite-(Fe)

Formula
Fe2+Nb2O6 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Striated 
Cleavage
Distinct, None, None 
Luster
Sub Metallic 
Color
black, brownish black 
Streak
blackish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
Collection
Arnold G Hampson Collection

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