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Rare Minerals

Friday, 07 March 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 acanthite, afghanite, anglesite, antipinite, bornite, and bournonite and more from places like Bulldog mine, Creede dist., Mineral Co., Colorado, United States, Kokcha Valley, Badakshan, Afghanistan, Hilltop mine, Rustler Park, Cochise Co., Arizona, United States, Coronel Manuel Rodríguez mine, Mejillones, Antofagasta, Chile, Carn Brea, Redruth, Cornwall, England, and Georg Mine, Willroth, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany.

SOLD

Acanthite - 65558

Acanthite - 65558

Acanthite

with Silver - #65558

Details
Data
Provenance
Resources

Locality: Bulldog mine, Creede dist., Mineral Co., Colorado, United States
Formula: Ag₂S
Availability: Sold
Size: 6 x 4 x 4 cm - Sm Cabinet
Tagged: sulfide , silver

Dull grey subhedral crystals of Acanthite to 3mm in masses to 1cm. Associated are tiny, spike-like crystals to 1mm.

Acanthite

Formula: Ag₂S
Crystal System: Monoclinic
Crystal Habit: Blocky, Skeletal, Arborescent
Cleavage: poor to none
Luster: Metallic
Color: lead gray, gray, iron black
Streak: shining black
Class: Monoclinic - Prismatic
Fracture: Sectile
Hardness: 2-2.5

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

SOLD

Afghanite - 65574

Afghanite - 65574

Afghanite

#65574

Details
Data
Provenance
Resources

Locality: Kokcha Valley, Badakshan, Afghanistan
Formula: Na₂₂Ca₁₀(Si₂₄Al₂₄)O₉₆(SO₄)₆Cl₆
Availability: Sold
Size: 4 x 3 x 2.3 cm - Miniature

Blue, subhedral crystals of Afghanite to 1.2cm.

Afghanite

Formula: Na₂₂Ca₁₀(Si₂₄Al₂₄)O₉₆(SO₄)₆Cl₆
Crystal System: Hexagonal
Crystal Habit: Massive
Cleavage: Perfect, None, None
Luster: Vitreous (Glassy)
Color: blue, colorless
Streak: white
Class: Hexagonal
Fracture: Conchoidal
Hardness: 5.5-6

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

SOLD

Anglesite - 65470

Anglesite - 65470

Anglesite

with Galena - #65470

Details
Data
Provenance
Resources

Locality: Hilltop mine, Rustler Park, Cochise Co., Arizona, United States
Formula: PbSO₄
Availability: Sold
Size: 2.5 x 2 x 1.5 cm - Thumbnail

Waterclear pointed-prismatic exceptional crystals to 1mm in Galena.

Anglesite

Formula: PbSO₄
Crystal System: Orthorhombic
Crystal Habit: Granular, Stalactitic
Cleavage: Good, Distinct, None
Luster: Adamantine
Color: blue, colorless, green, gray, yellow
Streak: white
Class: Orthorhombic - Dipyramidal
Fracture: Brittle - Conchoidal
Hardness: 2.5-3

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

SOLD

Antipinite - 65576

Antipinite - 65576

Antipinite

#65576

Details
Provenance
Resources

Locality: Coronel Manuel Rodríguez mine, Mejillones, Antofagasta, Chile
Formula: KNa₃Cu₂(C₂O₄)₄
Availability: Sold
Size: 2.5 x 1.5 x 1.5 cm - Thumbnail
Tagged: copper
Special Info: Type Locality

Blue crystal grains throughout matrix.

Special Info: Type Locality

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

Bornite - 65517

Bornite - 65517

Bornite

#65517

$495.00 - Available
Details
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Details
Data
Provenance
Resources

Locality: Carn Brea, Redruth, Cornwall, England
Formula: Cu₅FeS₄
Availability: Available
Price: $495.00
Size: 6 x 4.5 x 4 cm - Sm Cabinet
Tagged: sulfide , copper

Iridescent blue Bornite crystals from important Cornish mine.

Bornite

Formula: Cu₅FeS₄
Crystal System: Orthorhombic
Crystal Habit: Massive - Granular, Reniform, Granular
Cleavage: Imperfect, None, None
Luster: Metallic
Color: copper red, bronze brown, purple
Streak: grayish black
Class: Orthorhombic - Dipyramidal
Fracture: Conchoidal
Hardness: 3

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

Bournonite - 65491

Bournonite - 65491

Bournonite

#65491

$950.00 - Available
Details
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Add to Favorites

Details
Data
Provenance
Resources

Locality: Georg Mine, Willroth, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
Formula: CuPbSbS₃
Availability: Available
Price: $950.00
Size: 8 x 5.5 x 5 cm - Sm Cabinet
Tagged: sulfide , copper

Old-time specimen of Bournonite from the famous . The face is covered by excellent crystals to 6mm.

Bournonite

Formula: CuPbSbS₃
Crystal System: Orthorhombic
Crystal Habit: Platy, Pseudo Cubic, Cog-wheel
Cleavage: Imperfect, None, None
Luster: Metallic
Color: gray, black, steel gray
Streak: gray
Class: Orthorhombic - Dipyramidal
Fracture: Sub Conchoidal
Hardness: 3

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

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