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Rare Minerals

Thursday, 08 May 2025 06:00 PM

Introducing the "Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including argentopyrite, baryte, bismuthinite, caledonite, eudialyte, and famatinite and more from places like Shaft 371, Schlema-Hartenstein dist., Erzgebirge, Saxony, Germany, Hecla Rosebud mine, Pershing Co., Nevada, United States, Coats peg., Petaca dist., Rio Arriba Co., New Mexico, United States, Rowley mine, Maricopa Co., Arizona, United States, Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada, and Chinkuashih mine, Ruifang dist., New Taipei City, Taiwan.

SOLD

Argentopyrite - 65434

Argentopyrite - 65434

Argentopyrite

with Proustite - #65434

Details
Data
Provenance
Resources

Locality: Shaft 371, Schlema-Hartenstein dist., Erzgebirge, Saxony, Germany
Formula: AgFe₂S₃
Availability: Sold
Size: 1.5 x .8 x .6 cm - Thumbnail
Tagged: sulfide , silver

Dark gray mass of Argentopyrite with cherry red crystals of Proustite.

Argentopyrite

Formula: AgFe₂S₃
Crystal System: Orthorhombic
Cleavage: None, None, None
Luster: Metallic
Color: blue, bronze brown, green, yellow, white
Class: Orthorhombic - Dipyramidal
Fracture: Brittle - Uneven
Hardness: 3.5-4

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

Baryte - 65842

Baryte - 65842

Baryte

#65842

$25.00 - Available
Details
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Details
Data
Provenance
Resources

Locality: Hecla Rosebud mine, Pershing Co., Nevada, United States
Formula: BaSO₄
Availability: Available
Price: $25.00
Size: 4.5 x 2.8 x 2 cm - Miniature

A set of white to colorless Baryte rhombs to 1.8cm with an odd colorless prismatic crystal.

Baryte

Formula: BaSO4
Crystal System: Orthorhombic
Crystal Habit: Tabular, Prismatic, Massive - Fibrous
Cleavage: Perfect, Perfect, Imperfect
Luster: Vitreous (Glassy)
Color: white, yellowish white, grayish white, brownish white, dark brown
Streak: white
Class: Orthorhombic - Dipyramidal
Fracture: Uneven
Hardness: 3-3.5

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

Bismuthinite - 55131

Bismuthinite - 55131

Bismuthinite

with Bismutite - #55131

$35.00 - Available
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Details
Data
Provenance
Resources

Locality: Coats peg., Petaca dist., Rio Arriba Co., New Mexico, United States
Formula: Bi₂S₃
Availability: Available
Price: $35.00
Size: 3.5 x 2.5 x 1.5 cm - Miniature
Tagged: sulfide

Light straw yellow crystals to 4mm, an alteration of Bismuth in Quartz.

Bismuthinite

Formula: Bi₂S₃
Crystal System: Orthorhombic
Crystal Habit: Prismatic, Massive - Lamellar, Granular
Cleavage: Perfect, None, None
Luster: Metallic
Color: gray, silver white, tin white
Streak: gray
Class: Orthorhombic - Dipyramidal
Fracture: Brittle - Sectile
Hardness: 2

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

SOLD

Caledonite - 65511

Caledonite - 65511

Caledonite

#65511

Details
Data
Provenance
Resources

Locality: Rowley mine, Maricopa Co., Arizona, United States
Formula: Cu₂Pb₅(SO₄)₃(CO₃)(OH)₆
Availability: Sold
Size: 8 x 5 x 4 cm - Sm Cabinet
Tagged: copper

Rich specimen loaded with blue Caledonite crystals.

Caledonite

Formula: Cu₂Pb₅(SO₄)₃(CO₃)(OH)₆
Crystal System: Orthorhombic
Crystal Habit: Prismatic, Radial, Striated
Cleavage: Perfect, Distinct, None
Luster: Vitreous - Greasy
Color: blue, blue green, green, dark green
Streak: greenish white
Class: Orthorhombic - Pyramidal
Fracture: Uneven
Hardness: 2.5-3

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

SOLD

Eudialyte - 65835

Eudialyte - 65835

Eudialyte

#65835

Details
Data
Provenance
Resources

Locality: Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada
Formula: Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Availability: Sold
Size: 5 x 3.5 x 2 cm - Miniature

Superb and stunning cherry red Eudialyte crystals to 1.5mm in large 3cm vug.

Eudialyte

Formula: Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Crystal System: Trigonal
Crystal Habit: Massive - Granular, Tabular
Cleavage: Imperfect, None, None
Luster: Vitreous (Glassy)
Color: pinkish red, red, yellow, yellowish brown, violet
Streak: white
Class: Trigonal - Hexagonal Scalenohedral
Fracture: Uneven
Hardness: 5-5.5

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

SOLD

Famatinite - 65844

Famatinite - 65844

Famatinite

with Pyrite - #65844

Details
Data
Provenance
Resources

Locality: Chinkuashih mine, Ruifang dist., New Taipei City, Taiwan
Formula: Cu₃SbS₄
Availability: Sold
Size: 1.5 x 1.5 x 1 cm - Thumbnail
Tagged: sulfide , copper

Crystalline black and shiny mass. It is sawed on one side indicating it was tested.

Famatinite

Formula: Cu₃SbS₄
Crystal System: Tetragonal
Cleavage: Good, Distinct, None
Luster: Metallic
Color: grayish black, dark pink brown, steel gray
Streak: black
Class: Tetragonal - Scalenohedral
Fracture: Brittle - Conchoidal
Hardness: 3-4

On Dakota Matrix: Previously Sold Famatinite
On Dakota Matrix: Other Available Famatinite
WebMineral: View Famatinite
Mindat: View Famatinite

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