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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 arsenopyrite, aurichalcite, calcite and more from places like Santa Eulalia, Chihuahua, Mexico, Mina Ojuela, Mapimi, Durango, Mexico.

Arsenopyrite

#AH52736
Locality
Santa Eulalia, Chihuahua, Mexico 
Formula
FeAsS 
Availability
Sold
Size
7.5 x 5.5 x 4.5 cm - Sm Cabinet 
Tagged
sulfide  

Brilliant, sharp Arsenopyrite crystals to 6mm.


Arsenopyrite

Formula
FeAsS 
Crystal System
Monoclinic 
Crystal Habit
Striated, Euhedral Crystals, Prismatic 
Cleavage
one distinct 
Luster
Metallic 
Color
tin white, light steel gray 
Streak
black 
Geological Setting
Widespread. Most commonly found in medium to high temperature veins.  
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5 to 6 
Collection
Arnold G Hampson Collection

Aurichalcite

#AH52728
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn5(CO3)2(OH)6 
Availability
Sold
Size
7.5 x 6.5 x 4 cm - Sm Cabinet 
Tagged
carbonate  

Bluish-green fine thin bladed crystals to 8mm in vugs of limonitic matrix. Acquired by Hampson in 1971.


Aurichalcite

Formula
Zn5(CO3)2(OH)6 
Crystal System
Monoclinic 
Crystal Habit
Druse, Encrustations, Acicular 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
pale green, sky blue, greenish blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection

Aurichalcite

#AH52750
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn5(CO3)2(OH)6 
Availability
Sold
Size
6.5 x 5.5 x 3 cm - Sm Cabinet 
Tagged
carbonate  

Beautiful sprays of greenish blue Aurichalcite to 1cm across. Very nice specimen.


Aurichalcite

Formula
Zn5(CO3)2(OH)6 
Crystal System
Monoclinic 
Crystal Habit
Druse, Encrustations, Acicular 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
pale green, sky blue, greenish blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection

Aurichalcite

with Plattnerite - #AH52773
Locality
Mina Ojuela, Mapimi, Durango, Mexico 
Formula
Zn5(CO3)2(OH)6 
Availability
Sold
Size
10 x 9 x 5 cm - Cabinet 
Tagged
carbonate  

Large cabinet specimen of thin, slender Aurichalcite crystals to about 1cm. Really nice, attractive piece. Near the center are excellent, acicular Plattnerite crystals, Acquired in 1971 by Arnold Hampson.


Aurichalcite

Formula
Zn5(CO3)2(OH)6 
Crystal System
Monoclinic 
Crystal Habit
Druse, Encrustations, Acicular 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
pale green, sky blue, greenish blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection

Calcite

#AH52756
Locality
Santa Eulalia, Chihuahua, Mexico 
Formula
CaCO3 
Availability
Sold
Size
12 x 9 x 4 cm - Cabinet 
Tagged
carbonate  

Scalenohedral Calcite crystals to 3cm with a second generation of more complex Calcite wrapping around the first generation. The first generation often has a thin veneer of iron-oxide coating and also shows some phantoms, while the second generation has a bright orange layer. Super specimen, a classic locality for Mexico brought out in the early 1970's and virtually unobtainable these days.


Calcite

Formula
CaCO3 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Stalactitic, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
colorless, white, pink, yellow, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Calcite
On Dakota Matrix
Previously Sold Calcite
On Dakota Matrix
Other Available Calcite
WebMineral
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Mindat
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Calcite

#AH52775
Locality
Santa Eulalia, Chihuahua, Mexico 
Formula
CaCO3 
Availability
Sold
Size
15 x 8 x 3 cm - Cabinet 
Tagged
carbonate  

An eye pleasing specimen of rhombic Calcite with selective corners coated by iron oxide. The largest crystal is 3cm.


Calcite

Formula
CaCO3 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Stalactitic, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
colorless, white, pink, yellow, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Calcite
On Dakota Matrix
Previously Sold Calcite
On Dakota Matrix
Other Available Calcite
WebMineral
View Calcite
Mindat
View Calcite

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