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Mixed Minerals

Friday, 15 September 2023 04:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including smithite, smithsonite, ulexite, uranophane, and zircon and more from places like Jas Roux, Pelvoux Mt., Hautes-Alpes, Provence-Alpes-Côte d'Azur, France, 79 mine, Gila Co., Arizona, United States, Boron, Kramer dist., Kern Co., California, United States, Rossing mine, Rossing, Swakopmund, Namibia, and Tvedalen, Larvik, Vestfold, Norway.

Smithite

with Getchellite, Realgar and Orpiment - #KR62003
Locality
Jas Roux, Pelvoux Mt., Hautes-Alpes, Provence-Alpes-Côte d'Azur, France 
Formula
AgAsS2 
Availability
Sold
Size
2.1 x 3.3 x 3.3 cm - Miniature 
Tagged
sulfide , silver  

Silvery metallic crystal grains with dark red Getchellite, red Realgar and orange Orpiment.


Smithite

Formula
AgAsS2 
Crystal System
Monoclinic 
Crystal Habit
Pseudo Hexagonal, Pyramidal 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
brown orange, light red, orange red 
Streak
vermilion red 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
1.5-2 
Collection
Kenneth Raabe Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Smithite
On Dakota Matrix
Other Available Smithite
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Mindat
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Smithsonite

#62308
Locality
79 mine, Gila Co., Arizona, United States 
Formula
ZnCO3 
Availability
Sold
Size
8.5 x 6 x 4.5 cm - Sm Cabinet 
Tagged
carbonate  

Excellent speimen of 79 mine Smithsonite with a good rich shimmering green color.


Smithsonite

Formula
ZnCO3 
Crystal System
Trigonal 
Crystal Habit
Botryoidal, Reniform, Earthy 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
grayish white, dark gray, green, blue, yellow 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle 
Hardness
4.5 

Ulexite

#BAC62447
Locality
Boron, Kramer dist., Kern Co., California, United States 
Formula
NaCaB5O6(OH)6·5H2
Availability
Sold
Size
5 x 3.5 x 2.5 cm - Miniature 

Silky white fine acicular Ulexite in groups to 1.5cm.


Ulexite

Formula
NaCaB5O6(OH)6·5H2
Crystal System
Triclinic 
Crystal Habit
Acicular, Fibrous, Capillary 
Cleavage
Perfect, Perfect, None 
Luster
Chatoyant 
Color
colorless, white 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle 
Hardness
2.5 
Collection
William & Anne Cook Collection
Mineralpedia
View Ulexite
On Dakota Matrix
Previously Sold Ulexite
On Dakota Matrix
Other Available Ulexite
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Mindat
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Uranophane

#BAC62432
Locality
Rossing mine, Rossing, Swakopmund, Namibia 
Formula
Ca(UO2)2(SiO3OH)2·5H2
Availability
Sold
Size
8.5 x 4 x 2.5 cm - Sm Cabinet 
Special Info
Radioactive!! 

Choice translucent yellow groups of radiating prismatic Uranophane crystals to 6mm and individual crystals to 2mm. Ex. Prosper Williams specimen.


Uranophane

Formula
Ca(UO2)2SiO3(OH)2*5(H2O) 
Crystal System
Monoclinic 
Crystal Habit
Radial, Earthy, Massive - Fibrous 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
yellow, yellow brown, yellow green, yellow orange, light yellow 
Streak
yellowish white 
Class
Monoclinic - Sphenoidal 
Fracture
Uneven 
Hardness
2.5 
Collection
William & Anne Cook Collection
Special Info
Radioactive!!

Zircon

#CL62418
Locality
Tvedalen, Larvik, Vestfold, Norway 
Formula
ZrSiO4 
Availability
Sold
Size
5.5 x 4 x 3.7 cm - Sm Cabinet 

Very nice dark red tetragonal crystals to 1.3cm.


Zircon

Formula
ZrSiO4 
Crystal System
Tetragonal 
Crystal Habit
Prismatic, Tabular, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Adamantine 
Color
brown, reddish brown, colorless, gray, green 
Streak
white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Uneven 
Hardness
7.5 
Collection
Chet S. Lemanski, Jr. Collection
Mineralpedia
View Zircon
On Dakota Matrix
Previously Sold Zircon
On Dakota Matrix
Other Available Zircon
WebMineral
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Mindat
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