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Mixed Minerals

Sunday, 20 October 2019 01:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including adamite, azurite, boltwoodite, carnotite, cerussite, and chalcophyllite and more from places like Mina Ojuela, Mapimi, Durango, Mexico, Morenci mine, Greenlee Co., Arizona, United States, Rossing mine, Rossing, Swakopmund, Namibia, Channel 3A, Gouldings Well, Navajo Co., Arizona, United States, Flux mine, Patagonia, Santa Cruz Co., Arizona, United States, and Chuquicamata mine, El Loa Prov., Antofagasta, Chile.

Adamite

#AH51486
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn2AsO4(OH) 
Availability
Available
Price
$75.00
Size
11 x 8 x 3.5 cm - Cabinet 
Tagged
arsenate  
Special Info
Fluorescent 

Light yellow fans of Adamite to 11mm. An attractive specimen, which was obtained in 1970 by Hampson.


Adamite

Formula
Zn2AsO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Druse, Encrustations 
Cleavage
One Good 
Luster
Vitreous - Resinous 
Color
yellow, green, violet, pink, yellowish green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5 
Collection
Arnold G Hampson Collection
Special Info
Fluorescent
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Azurite

with Malachite - #RW51515
Locality
Morenci mine, Greenlee Co., Arizona, United States 
Formula
Cu3(CO3)2(OH)2 
Availability
Sold
Size
15 x 14 x 2 cm - Cabinet 
Tagged
carbonate , copper  

Deep blue thin to thick bladed lustrous Azurite crystals. This is an outstanding specimen, one certainly good for even an elite display collection. Much of the Azurite crystals are in divergent and/or sub-parallel groups to 1cm or more. Many of the crystals are terminated with pyramids and in a few places are pseudopmorhing to Malachite. 


Azurite

Formula
Cu3(CO3)2(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Tabular, Prismatic, Stalactitic 
Cleavage
Perfect, Fair, None 
Luster
Vitreous (Glassy) 
Color
azure blue, blue, light blue, dark blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Robert J. Waidler Collection
Mineralpedia
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Previously Sold Azurite
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Boltwoodite

#AH51475
Locality
Rossing mine, Rossing, Swakopmund, Namibia 
Formula
KUO2(SiO3OH)·H2
Availability
Available
Price
$125.00
Size
5 x 4 x 2 cm - Miniature 
Special Info
Radioactive!! 

Beautiful acicular sprays of Boltwoodite to 3mm.


Boltwoodite

Formula
KUO2(SiO3OH)·H2
Crystal System
Monoclinic 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous - Pearly 
Color
yellow, light yellow 
Streak
white 
Class
Monoclinic - Sphenoidal 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection
Special Info
Radioactive!!

Carnotite

#AH51498
Locality
Channel 3A, Gouldings Well, Navajo Co., Arizona, United States 
Formula
K2(UO2)2(VO4)2·3H2
Availability
Sold
Size
5 x 3.5 x 1.5 cm - Miniature 
Tagged
vanadium  
Special Info
Radioactive!! 

Hundreds of beautiful microscopic crystals of bright red Carnotite.


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!!

Cerussite

#AH51490
Locality
Flux mine, Patagonia, Santa Cruz Co., Arizona, United States 
Formula
PbCO3 
Availability
Sold
Size
5.5 x 4 x 1.5 cm - Sm Cabinet 
Tagged
carbonate  

Snow white prismatic crystals of Cerussite to 5mm.


Cerussite

Formula
PbCO3 
Crystal System
Orthorhombic 
Crystal Habit
Reticulate, Massive - Granular, Crystalline - Coarse 
Cleavage
Distinct, Distinct, None 
Luster
Adamantine 
Color
colorless, white, gray, blue, green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3-3.5 
Collection
Arnold G Hampson Collection
Mineralpedia
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Chalcophyllite

#BN51512
Locality
Chuquicamata mine, El Loa Prov., Antofagasta, Chile 
Formula
Cu18Al2(AsO4)4(SO4)3(OH)24·36H2
Availability
Sold
Size
7.5 x 4.5 x 3.5 cm - Sm Cabinet 
Tagged
arsenate , copper  

Attractive uncommon copper arseate, Chalcophyllite, with distinct crystals to about 0.5mm across the face. Very hard to obtain locality.


Chalcophyllite

Formula
Cu18Al2(AsO4)4(SO4)3(OH)24·36H2
Crystal System
Trigonal 
Crystal Habit
Platy, Tabular, Massive - Lamellar 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
emerald green, bluish green, grass green 
Streak
pale green 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Uneven 
Hardness
Collection
Dr. Buford L. Nichols Collection

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