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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 gypsum, hemimorphite, mimetite and more from places like Naica, Mun. de Saucillo, Chihuahua, Mexico, Mina Ojuela, Mapimi, Durango, Mexico, Santa Eulalia, Chihuahua, Mexico, San Roberto mine, San Luis Potosi, Mexico.

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
On Dakota Matrix
Previously Sold Gypsum
On Dakota Matrix
Other Available Gypsum
WebMineral
View Gypsum
Mindat
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Hemimorphite

#AH52745
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn4Si2O7(OH)2·H2
Availability
Sold
Size
7 x 4.5 x 3 cm - Sm Cabinet 

Thick bladed Hemimorphite crystals to over 1cm. Acquired in 1970 by Arnold Hampson.


Hemimorphite

Formula
Zn4Si2O7(OH)2·H2
Crystal System
Orthorhombic 
Crystal Habit
Massive, Stalactitic, Mammillary 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, greenish gray, yellow brown, white 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Conchoidal 
Hardness
Collection
Arnold G Hampson Collection

Mimetite

#52665
Locality
Santa Eulalia, Chihuahua, Mexico 
Formula
Pb5(AsO4)3Cl 
Availability
Available
Price
$350.00
Size
6.5 x 6 x 6 cm - Sm Cabinet 
Tagged
arsenate  

Botryoidal or renifom habit Mimetite with a great lemon yellow color. Excellent older specimen.


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
Barbara Cureton Collection
Mineralpedia
View Mimetite
On Dakota Matrix
Previously Sold Mimetite
On Dakota Matrix
Other Available Mimetite
WebMineral
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Mindat
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Mimetite

#AH52751
Locality
San Roberto mine, San Luis Potosi, Mexico 
Formula
Pb5(AsO4)3Cl 
Availability
Sold
Size
8 x 5 x 4 cm - Sm Cabinet 
Tagged
arsenate  

Orange crystal balls of Mimetite to 5mm across. Awesome specimen. Acquired by Arnold Hampson in 1966.


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
Mineralpedia
View Mimetite
On Dakota Matrix
Previously Sold Mimetite
On Dakota Matrix
Other Available Mimetite
WebMineral
View Mimetite
Mindat
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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
Mineralpedia
View Mimetite
On Dakota Matrix
Previously Sold Mimetite
On Dakota Matrix
Other Available Mimetite
WebMineral
View Mimetite
Mindat
View Mimetite

Mimetite

with Wulfenite - #AH52754
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Pb5(AsO4)3Cl 
Availability
Available
Price
$75.00
Size
10 x 6 x 4.5 cm - Cabinet 
Tagged
arsenate  

Green botryoidal Mimetite with yellow tabular crystals of Wulfenite.


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
Mineralpedia
View Mimetite
On Dakota Matrix
Previously Sold Mimetite
On Dakota Matrix
Other Available Mimetite
WebMineral
View Mimetite
Mindat
View Mimetite

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