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Colorado Plateau Minerals

Tuesday, 10 November 2020 06:00 PM

Introducing the "Colorado Plateau Minerals" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including carbonatecyanotrichite, chalcopyrite, pascoite, tyuyamunite, volborthite and more from places like Jomac mine, San Juan Co., Utah, United States, Happy Jack mine, White Canyon, San Juan Co., Utah, United States, Veta Mad mine, San Miguel Co., Colorado, United States, Easton B mine, San Miguel Co., Colorado, United States, Monument #1 mine, Navajo Co., Arizona, United States.

Carbonatecyanotrichite

with Antlerite - #AH54431
Locality
Jomac mine, San Juan Co., Utah, United States 
Formula
Cu4Al2CO3(OH)12·2H2
Availability
Available
Price
$55.00
Size
4.5 x 5 x 1 cm - Miniature 
Tagged
carbonate , copper  

A 3mm seam of rich blue Carbonatecyanotrichite composed of acicular crystals with green Antlerite.


Carbonatecyanotrichite

Formula
Cu4Al2CO3(OH)12·2H2
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Aggregates 
Luster
Silky 
Color
blue, greenish blue, azure blue 
Class
Orthorhombic 
Hardness
Collection
Arnold G Hampson Collection

Chalcopyrite

with Uraninite - #AH54453
Locality
Happy Jack mine, White Canyon, San Juan Co., Utah, United States 
Formula
Cu1+Fe3+S2 
Availability
Available
Price
$40.00
Size
4 x 3.5 x 1.5 cm - Miniature 
Tagged
sulfide , copper  
Special Info
Radioactive!! 

Rich specimen with golden Chalcopyrite impregnated through sandstone with black massive Uraninite. 


Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 
Collection
Arnold G Hampson Collection
Special Info
Radioactive!!

Pascoite

#AH54461
Locality
Veta Mad mine, San Miguel Co., Colorado, United States 
Formula
Ca3V5+10O28·17H2
Availability
Available
Price
$65.00
Size
12 x 6 x 4 cm - Cabinet 
Tagged
vanadium  

Bright efflorescent Pascoite coating matrix.


Pascoite

Formula
Ca3V5+10O28·17H2
Crystal System
Monoclinic 
Crystal Habit
Granular, Encrustations 
Cleavage
Distinct, None, None 
Luster
Vitreous - Adamantine 
Color
yellow brown, yellow orange, red orange 
Streak
yellow 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
2.5 
Collection
Arnold G Hampson Collection
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Tyuyamunite

#AH54473
Locality
Easton B mine, San Miguel Co., Colorado, United States 
Formula
Ca(UO2)2(VO4)2·5-8H2
Availability
Available
Price
$45.00
Size
3 x 3 x 1 cm - Thumbnail 
Tagged
vanadium  
Special Info
Radioactive!! 

Bright yellow groups of Tyuyamunite over 1mm.


Tyuyamunite

Formula
Ca(UO2)2(VO4)2·5-8H2
Crystal System
Orthorhombic 
Crystal Habit
Earthy, Scaly, Platy 
Cleavage
Perfect, Distinct, Distinct 
Luster
Adamantine - Pearly 
Color
greenish yellow, yellow 
Streak
light yellow 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
1.5-2 
Collection
Arnold G Hampson Collection
Special Info
Radioactive!!

Volborthite

with Malachite - #AH54465
Locality
Monument #1 mine, Navajo Co., Arizona, United States 
Formula
Cu3V2O7(OH)2·2H2
Availability
Available
Price
$65.00
Size
5 x 4 x 2.5 cm - Miniature 
Tagged
copper , vanadium  

Green rosettes of Volborthite to 1mm.

The identity of Volborthite is most likely correct, however Tangeite and Vesignieite look nearly exactly alike. Volborthite and Tangeite are also chemically similar. 


Volborthite

Formula
Cu3V2O7(OH)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Globular, Scaly 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
brownish yellow, greenish yellow, yellow, yellow green, light brown 
Streak
light green 
Class
Monoclinic - Prismatic 
Hardness
Collection
Arnold G Hampson Collection

Volborthite

#AH54486
Locality
Monument #1 mine, Navajo Co., Arizona, United States 
Formula
Cu3V2O7(OH)2·2H2
Availability
Available
Price
$75.00
Size
7.5 x 4 x 2 cm - Sm Cabinet 
Tagged
vanadium  

Rich coverage of bright green Volborthite as single crystals in a carpeted mass across half the specimen. Very nice piece.

The identity of Volborthite is most likely correct, however Tangeite and Vesignieite look nearly exactly alike. Volborthite and Tangeite are also chemically similar. 


Volborthite

Formula
Cu3V2O7(OH)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Globular, Scaly 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
brownish yellow, greenish yellow, yellow, yellow green, light brown 
Streak
light green 
Class
Monoclinic - Prismatic 
Hardness
Collection
Arnold G Hampson Collection

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