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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, crocoite, grossular, phosphoferrite, and turneaureite and more from places like Channel 3A, Gouldings Well, Navajo Co., Arizona, United States, Dundas Ext. mine, Dundas, Zeehan, Tasmania, Australia, Coahuila, Mexico, Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany, and ZCA #4 mine, Balmat, St. Lawrence Co., New York, United States.

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!!

Crocoite

#AH52185
Locality
Dundas Ext. mine, Dundas, Zeehan, Tasmania, Australia 
Formula
PbCrO4 
Availability
Available
Price
$125.00
Size
6 x 6 x 2.5 cm - Sm Cabinet 

Great reddish orange tabular crystals of Crocoite. Coverage on both sides. Stunning specimen.


Crocoite

Formula
PbCrO4 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Coarse, Massive - Granular, Acicular 
Cleavage
Distinct, Indistinct, Indistinct 
Luster
Adamantine 
Color
yellow, orange, red, red orange 
Streak
yellowish orange 
Class
Monoclinic - Prismatic 
Fracture
Sectile 
Hardness
2.5-3 
Collection
Arnold G Hampson Collection
Mineralpedia
View Crocoite
On Dakota Matrix
Previously Sold Crocoite
On Dakota Matrix
Other Available Crocoite
WebMineral
View Crocoite
Mindat
View Crocoite

Grossular

garnet - #AH52145
Locality
Coahuila, Mexico 
Formula
Ca3Al2(SiO4)3 
Availability
Available
Price
$125.00
Size
7.5 x 3.5 x 3 cm - Sm Cabinet 

"Raspberry" red crystals of Grossular garnet in nice grouping. The largest crystal is 1cm.


Grossular

Collection
Arnold G Hampson Collection

Phosphoferrite

#BN52117
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany 
Formula
Fe2+3(PO4)2·3H2
Availability
Sold
Size
5 x 4 x 3 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

Dark brown massive Phosphoferrite with in-part Rockbridgeite components.


Phosphoferrite

Formula
Fe2+3(PO4)2·3H2
Crystal System
Orthorhombic 
Crystal Habit
Octahedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
colorless, light green, dark reddish brown, reddish brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
3-3.5 
Collection
Dr. Buford Nichols Collection
SOLD
Turneaureite - BN52128
Turneaureite - BN52128

Turneaureite

with Donpeacorite - #BN52128
Locality
ZCA #4 mine, Balmat, St. Lawrence Co., New York, United States 
Formula
Ca5(AsO4)3Cl 
Availability
Sold
Size
2.5 x 2 x 1 cm - Thumbnail 
Tagged
arsenate  
Special Info
Type Locality 

Hard to tell from the photos, but there are brownish crystal grains in the tightly packed mass  - these are the Donpeacorite. At the far right side are grains of Turneaurite.


Turneaureite

Formula
Ca5(AsO4)3Cl 
Crystal System
Hexagonal 
Cleavage
None, None, None 
Luster
Vitreous - Greasy 
Color
colorless, gray white 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Uneven 
Hardness
Special Info
Type Locality

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