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0 item @ $0.00  

Mexican Minerals

Tuesday, 24 March 2020 12:00 PM

Introducing the "Mexican Minerals" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including adamite, creedite, descloizite, gypsum, and mimetite and more from places like Mina Ojuela, Mapimi, Durango, Mexico, Navidad mine, Abasolo, Rodeo, Durango, Mexico, Los Lamentos, Chihuahua, Mexico, Naica, Mun. de Saucillo, Chihuahua, Mexico.

Adamite

#50852
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn2AsO4(OH) 
Availability
Available
Price
$30.00
Size
6.5 x 2.5 x 3.5 cm - Sm Cabinet 
Tagged
arsenate  

Purple, manganoan, Adamite crystals with unique sheaf-like, fanned out crystals from 3 to 4mm wide. 


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 
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Adamite

#AH52735
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn2AsO4(OH) 
Availability
Available
Price
$25.00
Size
5 x 4 x 3 cm - Miniature 
Tagged
arsenate  

Yellowish green compact Adamite crystals occupying large vug. Acquired by Hampson in 1960.


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
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Creedite

#BC52717
Locality
Navidad mine, Abasolo, Rodeo, Durango, Mexico 
Formula
Ca3Al2(SO4)(OH)2F8·2H2
Availability
Available
Price
$375.00
Size
15 x 9 x 7 cm - Cabinet 

Large, eye-catching orange Creedite with crystaols to over 1.5cm in three ball-like group. Very nice, showy, specimen for the cabinet.


Creedite

Formula
Ca3Al2(SO4)(OH)2F8·2H2
Crystal System
Monoclinic 
Crystal Habit
Granular, Radial, Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous - Greasy 
Color
colorless, violet, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
3.5 
Collection
Barbara Cureton Collection
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Descloizite

#AH52752
Locality
Los Lamentos, Chihuahua, Mexico 
Formula
PbZnVO4(OH) 
Availability
Available
Price
$55.00
Size
8.5 x 6 x 5 cm - Sm Cabinet 
Tagged
vanadium  

Reddish brown rosettes of Desclozite covering entire specimen. 


Descloizite

Formula
PbZnVO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Plumose, Tabular, Encrustations 
Cleavage
None, None, None 
Luster
Greasy (Oily) 
Color
dark brownish black, dark reddish brown, orange red, reddish brown, black 
Streak
light brownish green 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5 
Collection
Arnold G Hampson Collection

Gypsum

var. selenite with Quartz - #AH52771
Locality
Naica, Mun. de Saucillo, Chihuahua, Mexico 
Formula
CaSO4·2H2
Availability
Available
Price
$125.00
Size
15 x 8 x 6 cm - Cabinet 

Large excellent crystal with a fine coating of iron oxide. Without this coating, the specimen would be waterclear. I don't know if it is possible to remove the coating, however, without damage to the crystal. There are overgrowths of Quartz clusters resembling pineapples. The third from the last photo shows an imprint from one of these clusters.  A near perfect specimen which shows virtually no damage. It is nearly perfect.


Gypsum

Formula
CaSO4·2H2
Crystal System
Monoclinic 
Crystal Habit
Tabular, Crystalline - Coarse, Massive - Fibrous 
Cleavage
Perfect, Distinct, Distinct 
Luster
Pearly 
Color
white, colorless, yellowish white, greenish white, brown 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Fibrous 
Hardness
Collection
Arnold G Hampson Collection
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Mimetite

with Calcite - #AH52753
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Pb5(AsO4)3Cl 
Availability
Available
Price
$45.00
Size
5.5 x 3.5 x 4 cm - Sm Cabinet 
Tagged
arsenate  

Yellow acicular crystals to 4mm with Calcite.


Mimetite

Formula
Pb5(AsO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Reniform, Globular, Prismatic 
Cleavage
Imperfect, None, None 
Luster
Adamantine - Resinous 
Color
white, yellow, orange, brown, red 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection
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