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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 natanite, polybasite, pyrargyrite, pyrrhotite, and quartz and more from places like 10th level, Potosi mine, Santa Eulalia, Chihuahua, Mexico, Veta Grande mine, Vetagrande, Zacatecas, Mexico, San Juan de Rayas mine, Guanajuato, Mexico, and Los Arcoiris, Ojo Laguna, Chihuahua, Mexico.

Natanite

on Ilvaite - #51537

$75.00 - Available
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Locality: 10th level, Potosi mine, Santa Eulalia, Chihuahua, Mexico
Formula: Fe²⁺Sn⁴⁺(OH)₆
Availability: Available
Price: $75.00
Size: 4.5 x 1.5 x 3 cm - Miniature
Tagged: tin

Bright blue octahedral crystal to 1mm in black Ilvaite. Natanite is a rare tin mineral found at very few localities worldwide.

Natanite

Formula: Fe²⁺Sn⁴⁺(OH)₆
Crystal System: Isometric
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: greenish brown
Class: Isometric - Hexoctahedral
Hardness: 5

Mineralpedia: View Natanite
On Dakota Matrix: Previously Sold Natanite
On Dakota Matrix: Other Available Natanite
WebMineral: View Natanite
Mindat: View Natanite

SOLD

Polybasite

with Acanthite on Quartz - #BN51684

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Locality: Veta Grande mine, Vetagrande, Zacatecas, Mexico
Formula: Cu(Ag,Cu)₆Ag₉Sb₂S₁₁
Availability: Sold
Size: 6 x 5 x 3.5 cm - Sm Cabinet
Tagged: sulfide , copper , silver

Hexagonal, silvery, Polybasite crystals to 6mm with associated Acanthite crystals. Some minor Chalcopyrite.

Polybasite

Formula: Cu(Ag,Cu)₆Ag₉Sb₂S₁₁
Crystal System: Monoclinic
Crystal Habit: Massive - Granular, Granular, Pseudo Hexagonal
Cleavage: Poor, None, None
Luster: Sub Metallic
Color: black, dark ruby red
Streak: reddish black
Class: Monoclinic - Prismatic
Fracture: Uneven
Hardness: 2.5-3

Collection: Dr. Buford Nichols Collection

Mineralpedia: View Polybasite
On Dakota Matrix: Previously Sold Polybasite
On Dakota Matrix: Other Available Polybasite
WebMineral: View Polybasite
Mindat: View Polybasite

Polybasite

#BN51688

$65.00 - Available
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Locality: San Juan de Rayas mine, Guanajuato, Mexico
Formula: Cu(Ag,Cu)₆Ag₉Sb₂S₁₁
Availability: Available
Price: $65.00
Size: 1.4 x 1.4 x 0.7 cm - Thumbnail
Tagged: sulfide , copper , silver

Small plates of striated Polybasite showing nice striations.

Polybasite

Formula: Cu(Ag,Cu)₆Ag₉Sb₂S₁₁
Crystal System: Monoclinic
Crystal Habit: Massive - Granular, Granular, Pseudo Hexagonal
Cleavage: Poor, None, None
Luster: Sub Metallic
Color: black, dark ruby red
Streak: reddish black
Class: Monoclinic - Prismatic
Fracture: Uneven
Hardness: 2.5-3

Collection: Dr. Buford Nichols Collection

Mineralpedia: View Polybasite
On Dakota Matrix: Previously Sold Polybasite
On Dakota Matrix: Other Available Polybasite
WebMineral: View Polybasite
Mindat: View Polybasite

Pyrargyrite

#BN51695

$70.00 - Available
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Locality: San Juan de Rayas mine, Guanajuato, Mexico
Formula: Ag₃SbS₃
Availability: Available
Price: $70.00
Size: 2.4 x 1.3 x 1.2 cm - Thumbnail
Tagged: sulfide , silver

A 2.3cm terminated Pyrargyrite crystal, nicely terminated, and showing nice red internal reflections. A ding on termination.

Pyrargyrite

Formula: Ag₃SbS₃
Crystal System: Trigonal
Crystal Habit: Massive, Crystalline - Poor, Prismatic
Cleavage: Poor, None, None
Luster: Sub Metallic
Color: deep red, red gray
Streak: cherry red
Class: Trigonal - Ditrigonal Pyramidal
Fracture: Brittle - Conchoidal
Hardness: 2.5

Mineralpedia: View Pyrargyrite
On Dakota Matrix: Previously Sold Pyrargyrite
On Dakota Matrix: Other Available Pyrargyrite
WebMineral: View Pyrargyrite
Mindat: View Pyrargyrite

SOLD

Pyrrhotite

with Sphalerite - #AH52737

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Locality: Santa Eulalia, Chihuahua, Mexico
Formula: Fe₇S₈
Availability: Sold
Size: 6 x 4.5 x 5 cm - Sm Cabinet
Tagged: sulfide

Brassy colored barrel shaped crystals of magnetic Pyrrhotite to 8mm associated with Sphalerite and Quartz. Excellent specimen. Acquired in 1971 by Hampson.

Pyrrhotite

Formula: Fe₇S₈
Crystal System: Monoclinic
Crystal Habit: Tabular, Platy, Massive - Granular
Cleavage: Imperfect, Imperfect, None
Luster: Metallic
Color: bronze, bronze red, dark brown
Streak: gray black
Class: Monoclinic - Prismatic
Fracture: Uneven
Hardness: 3.5-4

Collection: Arnold G Hampson Collection

Mineralpedia: View Pyrrhotite
On Dakota Matrix: Previously Sold Pyrrhotite
On Dakota Matrix: Other Available Pyrrhotite
WebMineral: View Pyrrhotite
Mindat: View Pyrrhotite

Quartz

var. agate - #52800

$85.00 - Available
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Locality: Los Arcoiris, Ojo Laguna, Chihuahua, Mexico
Formula: SiO₂
Availability: Available
Price: $85.00
Size: 6.5 x 6 x 2 cm - Sm Cabinet

Beautiful Laguna agate with white to purple bands and Quartz crystals in a vug at center. Two main photos are shown: the left photo is dry and right photo is takes with the specimen wet, which brings out the color. All of the close-ups are wet.

Quartz

Formula: SiO₂
Crystal System: Trigonal
Crystal Habit: Crystalline - Coarse, Druse, Crystalline - Fine
Cleavage: Indistinct, None, None
Luster: Vitreous (Glassy)
Color: brown, colorless, violet, gray, yellow
Streak: white
Class: Trigonal - Trapezohedral
Fracture: Conchoidal
Hardness: 7

Mineralpedia: View Quartz
On Dakota Matrix: Previously Sold Quartz
On Dakota Matrix: Other Available Quartz
WebMineral: View Quartz
Mindat: View Quartz

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