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0 item @ $0.00  

Mixed Minerals

Friday, 17 January 2020 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including carnotite, pyrite, strengite, and svanbergite and more from places like Channel 3A, Gouldings Well, Navajo Co., Arizona, United States, Mountain Springs mine, Rico dist., Dolores Co., Colorado, United States, Torre de Moncorvo, Bragança, Portugal, and Dover mine, near Hawthorne, Mineral Co., Nevada Mineral Co., Nevada.

Carnotite

#AH52197
Locality
Channel 3A, Gouldings Well, Navajo Co., Arizona, United States 
Formula
K2(UO2)2(VO4)2·3H2
Availability
Available
Price
$40.00
Size
4 x 4 x 1.5 cm - Miniature 
Special Info
Radioactive!! 

Exceptional canary yellow, opaque crystals to about 0.3mm as singles and in groups. Very nice.


Carnotite

Formula
K2(UO2)2(VO4)2·3H2
Crystal System
Monoclinic 
Crystal Habit
Earthy, Encrustations, Platy 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
yellow, golden yellow, greenish yellow 
Streak
light yellow 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection
Special Info
Radioactive!!

Pyrite

on Sphalerite - #AH52190
Locality
Mountain Springs mine, Rico dist., Dolores Co., Colorado, United States 
Formula
FeS2 
Availability
Sold
Size
4.5 x 4.5 x 2.5 cm - Miniature 
Tagged
sulfide  

Handsome miniature from a little known mine (at least to me) of black Sphalerite matrix with good Pyrite crystals to 9mm. Obtained from a Navajo miner by Hampson in 1965.


Pyrite

Formula
FeS2 
Crystal System
Isometric 
Crystal Habit
Striated, Druse, Stalactitic 
Cleavage
Poor, Poor, None 
Luster
Metallic 
Color
pale brass yellow 
Streak
greenish black 
Class
Isometric - Diploidal 
Fracture
Conchoidal 
Hardness
6.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Pyrite
On Dakota Matrix
Previously Sold Pyrite
On Dakota Matrix
Other Available Pyrite
WebMineral
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Mindat
View Pyrite

Strengite

#BN52130
Locality
Torre de Moncorvo, Bragança, Portugal 
Formula
Fe3+PO4·2H2
Availability
Sold
Size
1.5 x 1.5 x 1 cm - Thumbnail 
Tagged
phosphate , pegmatite mineral  

Colorless tiny prismatic crystals of Strengite stained orange.


Strengite

Formula
Fe3+PO4·2H2
Crystal System
Orthorhombic 
Crystal Habit
Spherical, Radial, Botryoidal 
Cleavage
Good, Poor, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale violet, deep violet, red, carmine red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5 
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Strengite
On Dakota Matrix
Previously Sold Strengite
On Dakota Matrix
Other Available Strengite
WebMineral
View Strengite
Mindat
View Strengite

Svanbergite

#BN52118
Locality
Dover mine, near Hawthorne, Mineral Co., Nevada Mineral Co., Nevada 
Formula
SrAl3(SO4)(PO4)(OH)6 
Availability
Sold
Size
4.5 x 4.5 x 4 cm - Miniature 
Tagged
phosphate  

Yellowish brown tiny, equant, Svanbergite crystals in vugs throughout matrix.


Svanbergite

Formula
SrAl3(SO4)(PO4)(OH)6 
Crystal System
Trigonal 
Crystal Habit
Rhombohedral Crystals, Pseudo Cubic, Massive - Granular 
Cleavage
Distinct, None, None 
Luster
Vitreous - Adamantine 
Color
colorless, yellow, pink, reddish brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Hardness
Collection
Dr. Buford Nichols Collection

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