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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 covellite, hewettite, melanovanadite, metazeunerite, and navajoite and more from places like Cashin mine, Montrose Co., Colorado, United States, Cactus Rat mine, Grand Co., Utah, United States, Monument #2 mine, Apache Co., Arizona, United States, Worcester mine, Uravan dist., Montrose Co., Colorado, United States, Jomac mine, San Juan Co., Utah, United States.

Covellite

with Chalcopyrite - #AH54447
Locality
Cashin mine, Montrose Co., Colorado, United States 
Formula
CuS 
Availability
Sold
Size
8 x 5 x 3.5 cm - Sm Cabinet 
Tagged
sulfide , copper  

Rich specimen of purplish Covellite and golden Chalcopyrite impregnated through sandstaone.


Covellite

Formula
CuS 
Crystal System
Hexagonal 
Crystal Habit
Platy, Foliated 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
indigo blue, light blue, dark blue, black 
Streak
black gray 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle 
Hardness
1.5-2 
Collection
Arnold G Hampson Collection
Mineralpedia
View Covellite
On Dakota Matrix
Previously Sold Covellite
On Dakota Matrix
Other Available Covellite
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Mindat
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Hewettite

#AH54440
Locality
Cactus Rat mine, Grand Co., Utah, United States 
Formula
CaV5+6O16·9H2
Availability
Sold
Size
7 x 4 x 3 cm - Sm Cabinet 
Tagged
vanadium  

Flashy reddish Hewetitte crystals in conglomerate.


Hewettite

Formula
CaV5+6O16·9H2
Crystal System
Monoclinic 
Crystal Habit
Acicular 
Luster
Silky 
Color
red 
Streak
brownish red 
Class
Monoclinic - Prismatic 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Hewettite
On Dakota Matrix
Previously Sold Hewettite
On Dakota Matrix
Other Available Hewettite
WebMineral
View Hewettite
Mindat
View Hewettite
SOLD
Hewettite - AH54462
Hewettite - AH54462

Hewettite

#AH54462
Locality
Monument #2 mine, Apache Co., Arizona, United States 
Formula
CaV5+6O16·9H2
Availability
Sold
Size
8 x 5 x 2.5 cm - Sm Cabinet 
Tagged
vanadium  

Massive red Hewettite in sandstone matrix.


Hewettite

Formula
CaV5+6O16·9H2
Crystal System
Monoclinic 
Crystal Habit
Acicular 
Luster
Silky 
Color
red 
Streak
brownish red 
Class
Monoclinic - Prismatic 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Hewettite
On Dakota Matrix
Previously Sold Hewettite
On Dakota Matrix
Other Available Hewettite
WebMineral
View Hewettite
Mindat
View Hewettite

Melanovanadite

with Carnotite - #AH53930
Locality
Worcester mine, Uravan dist., Montrose Co., Colorado, United States 
Formula
CaV4+2V5+2O10·5H2
Availability
Sold
Size
6 x 6 x 3 cm - Sm Cabinet 
Tagged
vanadium  
Special Info
Radioactive!! 

Black massive Melanovanadite with yellowish Carnotite.


Melanovanadite

Formula
CaV4+2V5+2O10·5H2
Crystal System
Triclinic 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
black 
Streak
dark red brown 
Class
Triclinic - Pinacoidal 
Fracture
Brittle 
Hardness
2.5 
Collection
Arnold G Hampson Collection
Special Info
Radioactive!!

Metazeunerite

#AH54471
Locality
Jomac mine, San Juan Co., Utah, United States 
Formula
Cu(UO2)2(AsO4)2·8H2
Availability
Sold
Size
5.5 x 3.5 x 1.5 cm - Sm Cabinet 
Tagged
copper  

Pastel green square, tabular crystals to less than 0.3mm with good coverage.


Metazeunerite

Formula
Cu(UO2)2(AsO4)2·8H2
Crystal System
Tetragonal 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous - Pearly 
Color
green, grass green, emerald green 
Streak
greenish white 
Class
Tetragonal - Dipyramidal 
Hardness
2-2.5 
Collection
Arnold G Hampson Collection

Navajoite

#54485
Locality
Monument #2 mine, Apache Co., Arizona, United States 
Formula
(V5+,Fe3+)10O24·12H2
Availability
Sold
Size
5 x 4.5 x 3 cm - Miniature 
Tagged
vanadium  
Special Info
Type Locality 

Rusty red fibrous crystals with rich coverage. Excellent specimen.


Navajoite

Formula
(V5+,Fe3+)10O24·12H2
Crystal System
Monoclinic 
Cleavage
None, None, None 
Luster
Adamantine 
Color
dark brown 
Streak
brown 
Class
Monoclinic - Prismatic 
Hardness
1.5 
Special Info
Type Locality
Mineralpedia
View Navajoite
On Dakota Matrix
Previously Sold Navajoite
On Dakota Matrix
Other Available Navajoite
WebMineral
View Navajoite
Mindat
View Navajoite

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