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0 item @ $0.00  

Mixed Minerals

Sunday, 31 October 2021 06:30 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including baryte, beraunite, brazilianite, copper, dypingite, and enargite and more from places like Northumberland mine, Nye Co., Nevada, United States, Three Oaks Gap, Polk Co., Arkansas, United States, Conselheiro Pena, Minas Gerais, Brazil, Ray mine area, Pinal Co., Arizona, United States, New Idria dist., San Benito Co., California, United States, and Butte dist., Silver Bow Co., Montana, United States.

Baryte

#42895
Locality
Northumberland mine, Nye Co., Nevada, United States 
Formula
BaSO4 
Availability
Available
Price
$25.00
Size
4 x 4.5 x 3.5 cm - Miniature 

Sharp 3.5cm translucent gray crystals.


Baryte

Formula
BaSO4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Massive - Fibrous 
Cleavage
Perfect, Perfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, grayish white, brownish white, dark brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
3-3.5 
Mineralpedia
View Baryte
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Previously Sold Baryte
On Dakota Matrix
Other Available Baryte
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Beraunite

with Kidwellite - #BN56840
Locality
Three Oaks Gap, Polk Co., Arkansas, United States 
Formula
Fe2+Fe3+5(PO4)4(OH)5·6H2
Availability
Sold
Size
7.5 x 6 x 5 cm - Sm Cabinet 
Tagged
phosphate  

Long deep red, bladed Beraunite crystals to 1cm or more and coverage with light to dark green Kidwellite. Excellent piece.


Beraunite

Formula
Fe2+Fe3+5(PO4)4(OH)5·6H2
Crystal System
Monoclinic 
Crystal Habit
Druse, Radial, Globular 
Cleavage
Good, None, None 
Luster
Vitreous - Dull 
Color
green, greenish brown, gray green, dark greenish brown, dark red 
Streak
green brown 
Class
Monoclinic - Prismatic 
Hardness
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Beraunite
On Dakota Matrix
Previously Sold Beraunite
On Dakota Matrix
Other Available Beraunite
WebMineral
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Mindat
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Brazilianite

#WR56842
Locality
Conselheiro Pena, Minas Gerais, Brazil 
Formula
NaAl3(PO4)2(OH)4 
Availability
Available
Price
$85.00
Size
5 x 2 x 2 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

Rich greenish yellow, gemmy Brazilianite crystal with multiple faces. There are some internal feathering and flaws and minor chipping along the edges.


Brazilianite

Formula
NaAl3(PO4)2(OH)4 
Crystal System
Monoclinic 
Crystal Habit
Spherical, Euhedral Crystals 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, greenish yellow, yellow green, light yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
5.5 
Collection
Willard L. Roberts Collection

Copper

#AH56825
Locality
Ray mine area, Pinal Co., Arizona, United States 
Formula
Cu 
Availability
Sold
Size
6 x 4 x 3 cm - Sm Cabinet 
Tagged
copper , native element  

Arborescent growth Copper crystals.


Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
Arnold G Hampson Collection
Mineralpedia
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Previously Sold Copper
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Dypingite

with Artinite & Desautelsite - #56811
Locality
New Idria dist., San Benito Co., California, United States 
Formula
Mg5(CO3)4(OH)2·5H2
Availability
Sold
Size
4 x 3.5 x 1 cm - Miniature 
Tagged
carbonate  

Tiny 0.3mm snow white spherules of Dypingite with a little larger radiating crystal groups of Artine, also white, and a thin coating of dark orange Desautelsite.


Dypingite

Formula
Mg5(CO3)4(OH)2·5H2
Crystal System
Monoclinic 
Crystal Habit
Globular, Aggregates 
Luster
Pearly 
Color
white 
Streak
white 
Class
Monoclinic 
Hardness

Enargite

#56776
Locality
Butte dist., Silver Bow Co., Montana, United States 
Formula
Cu3AsS4 
Availability
Sold
Size
13 x 9.5 x 6 cm - Cabinet 
Tagged
sulfide , copper  

Large, heavy specimen with a face covered with good 3-6mm Enargite crystals and some Pyrite. Will cost extra to ship.


Enargite

Formula
Cu3AsS4 
Crystal System
Orthorhombic 
Crystal Habit
Euhedral Crystals, Massive - Granular, Prismatic 
Cleavage
Perfect, Distinct, Distinct 
Luster
Metallic 
Color
steel gray, blackish gray, violet black 
Streak
black 
Class
Orthorhombic - Pyramidal 
Fracture
Uneven 
Hardness
Mineralpedia
View Enargite
On Dakota Matrix
Previously Sold Enargite
On Dakota Matrix
Other Available Enargite
WebMineral
View Enargite
Mindat
View Enargite

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