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Mixed Minerals

Friday, 30 August 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 acanthite, bismuth, bornite, brochantite, cerussite, and chalcocite and more from places like Bulldog mine, Creede dist., Mineral Co., Colorado, United States, Cerro de Pasco, Pasco dept., Peru, Prokop mine, Příbram, Bohemia, Czech Republic, Metcalf mine, Greenlee Co., Arizona, United States, Tsumeb mine, Tsumeb, Namibia, and Flambeau mine, Ladysmith, Rusk Co., Wisconsin, United States.

Acanthite

with Silver - #RW51198
Locality
Bulldog mine, Creede dist., Mineral Co., Colorado, United States 
Formula
Ag2
Availability
Sold
Size
18 x 11.5 x 0.7 cm - Cabinet 
Tagged
sulfide , silver  

Large slab of Acanthite and native Silver concentrically banded along tips of Quartz crystals. 


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 
Collection
Robert J. Waidler Collection
Mineralpedia
View Acanthite
On Dakota Matrix
Previously Sold Acanthite
On Dakota Matrix
Other Available Acanthite
WebMineral
View Acanthite
Mindat
View Acanthite

Bismuth

#51136
Locality
Cerro de Pasco, Pasco dept., Peru 
Formula
Bi 
Availability
Sold
Size
1.3 x 1.3 x 0.9 cm - Thumbnail 
Tagged
native element  

Superb cavernous group of native Bismuth crystals. May be synthetic.


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 
Mineralpedia
View Bismuth
On Dakota Matrix
Previously Sold Bismuth
On Dakota Matrix
Other Available Bismuth
WebMineral
View Bismuth
Mindat
View Bismuth

Bornite

#RW51201
Locality
Prokop mine, Příbram, Bohemia, Czech Republic 
Formula
Cu5FeS4 
Availability
Sold
Size
10 x 7 x 5.5 cm - Cabinet 
Tagged
sulfide , copper , ore specimen  

Massive blue iridescent Bornite brecciated ore specimen. 


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
View Bornite
Mindat
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Brochantite

#RW51179
Locality
Metcalf mine, Greenlee Co., Arizona, United States 
Formula
Cu4SO4(OH)6 
Availability
Available
Price
$175.00
Size
9 x 4.5 x 2.5 cm - Sm Cabinet 
Tagged
copper  

Exceptional emerald green prismatic and large Brochantite prismatic crystals to 2.5mm. These crystals are truly amazing, well-defined and large for the species.


Brochantite

Formula
Cu4SO4(OH)6 
Crystal System
Monoclinic 
Crystal Habit
Acicular, Prismatic, Druse 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
green, emerald green, black 
Streak
pale green 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Robert J. Waidler Collection

Cerussite

#RW51200
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
PbCO3 
Availability
Available
Price
$95.00
Size
8 x 6 x 3.5 cm - Sm Cabinet 
Tagged
carbonate  

Large specimen of lustrous white Cerussite showing large distinct crystals and most show twinning planes. There is a small spot on the backside which shows a green inclusion, most like Duftite. It did not take photos well, but in-hand this specimen is ver impressive.


Cerussite

Formula
PbCO3 
Crystal System
Orthorhombic 
Crystal Habit
Reticulate, Massive - Granular, Crystalline - Coarse 
Cleavage
Distinct, Distinct, None 
Luster
Adamantine 
Color
colorless, white, gray, blue, green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3-3.5 
Collection
Robert J. Waidler Collection
Mineralpedia
View Cerussite
On Dakota Matrix
Previously Sold Cerussite
On Dakota Matrix
Other Available Cerussite
WebMineral
View Cerussite
Mindat
View Cerussite

Chalcocite

#RW51204
Locality
Flambeau mine, Ladysmith, Rusk Co., Wisconsin, United States 
Formula
Cu2
Availability
Sold
Size
13 x 7 x 5 cm - Cabinet 
Tagged
sulfide , copper , ore specimen  

Large specimen full of stacked Chalcocite crystals with a black to iridescent blue color.


Chalcocite

Formula
Cu2
Crystal System
Monoclinic 
Crystal Habit
Massive, Granular, Euhedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
blue black, gray, black, black gray, steel gray 
Streak
grayish black 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection

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