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Mixed Minerals

Friday, 13 March 2020 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including andorite, argentopyrite, arthurite, cassiterite, and cupromolybdite and more from places like San Germán mine, Cerro de Potosí, Potosí, Bolivia, Jachymov, Erzgegirge, Bohemia, Czech Republic, Hingston Down quarry, Gunnislake, Cornwall, England, Pendarves mine, Camborne, Cornwall, England, Poldory Sett, United Downs, St. Day, Cornwall, England, and Tolbachik Volcano, Kamchatka, Russia.

SOLD

Andorite - 52480

Andorite - 52480

Andorite

with Stannite, Jamesonite & Arsenopyrite - #52480

Details
Data
Provenance
Resources

Locality: San Germán mine, Cerro de Potosí, Potosí, Bolivia
Formula: AgPbSb₃S₆
Availability: Sold
Size: 8 x 6 x 5 cm - Sm Cabinet
Tagged: sulfide , silver

Tabular, striated Andorite crystals to 1mm filling vugs Pyrite. In the vugs can be seen elongated, prismatic crystals of Arsenopyrite and filliform Jamesonite. In the matrix Stannite can be seen as grey and iridescent areas.

Andorite

Formula: PbAgSb3S6
Crystal System: Orthorhombic
Crystal Habit: Striated, Tabular
Cleavage: None, None, None
Luster: Metallic
Color: grayish yellow, dark gray, steel gray
Streak: black
Class: Orthorhombic - Dipyramidal
Fracture: Brittle - Conchoidal
Hardness: 3-3.5

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

Argentopyrite - 52367

Argentopyrite - 52367

Argentopyrite

#52367

$30.00 - Available
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Locality: Jachymov, Erzgegirge, Bohemia, Czech Republic
Formula: AgFe₂S₃
Availability: Available
Price: $30.00
Size: 3 x 2 x 1 cm - Thumbnail
Tagged: sulfide , silver

Very tiny formless grains of Argentopyrite.

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

Arthurite - 52471

Arthurite - 52471

Arthurite

#52471

$60.00 - Available
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Data
Provenance
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Locality: Hingston Down quarry, Gunnislake, Cornwall, England
Formula: CuFe³⁺₂(AsO₄)₂(OH)₂·4H₂O
Availability: Available
Price: $60.00
Size: 7 x 6.5 x 1.5 cm - Sm Cabinet
Tagged: arsenate , copper
Special Info: Type Locality

Green coatings and micro crystals less than 0.75mm. Some areas contain good well-defined crystals whereas other areas are crystals which have all merged together forming a crust. This is the type locality.

Arthurite

Formula: CuFe³⁺₂(AsO₄)₂(OH)₂·4H₂O
Crystal System: Monoclinic
Crystal Habit: Prismatic, Acicular, Spherical
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: apple green, emerald green
Streak: light green
Class: Monoclinic - Prismatic
Fracture: Brittle
Hardness: 3-4

Special Info: Type Locality

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

Cassiterite - 52435

Cassiterite - 52435

Cassiterite

#52435

$125.00 - Available
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Provenance
Resources

Locality: Pendarves mine, Camborne, Cornwall, England
Formula: SnO₂
Availability: Available
Price: $125.00
Size: 5.5 x 3.5 x 3 cm - Sm Cabinet
Tagged: tin

Rich specimen with abundant glassy brown crystals of well-formed Cassiterite crystals up to 4mm. Ex. Richard Barstow with tag.

Cassiterite

Formula: SnO₂
Crystal System: Tetragonal
Crystal Habit: Prismatic, Massive, Botryoidal
Cleavage: Perfect, Indistinct, None
Luster: Adamantine
Color: brown, brownish black, colorless, green, gray
Streak: brownish white
Class: Tetragonal - Ditetragonal Dipyramidal
Fracture: Irregular
Hardness: 6-7

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

Cassiterite - 52440

Cassiterite - 52440

Cassiterite

#52440

$150.00 - Available
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Details
Data
Provenance
Resources

Locality: Poldory Sett, United Downs, St. Day, Cornwall, England
Formula: SnO₂
Availability: Available
Price: $150.00
Size: 7 x 5.5 x 5.5 cm - Sm Cabinet
Tagged: tin

Exceptionally well formed glassy brown crystals of Cassiterite to 2mm.

Cassiterite

Formula: SnO₂
Crystal System: Tetragonal
Crystal Habit: Prismatic, Massive, Botryoidal
Cleavage: Perfect, Indistinct, None
Luster: Adamantine
Color: brown, brownish black, colorless, green, gray
Streak: brownish white
Class: Tetragonal - Ditetragonal Dipyramidal
Fracture: Irregular
Hardness: 6-7

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

Cupromolybdite - 52393

Cupromolybdite - 52393

Cupromolybdite

#52393

$95.00 - Available
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Locality: Tolbachik Volcano, Kamchatka, Russia
Formula: Cu₃O(MoO₄)₂
Availability: Available
Price: $95.00
Size: 1 x 1 x 1 cm - Thumbnail
Tagged: copper
Special Info: XRD Confirmed
Special Info: EDS Confirmed
Special Info: Type & Only Locality
Special Info: Author's Material

Red elongated octahedral micro crystals less than 0.5mm. This is a specimen studied by the author Dr. Igor Pekov.

Special Info: XRD Confirmed
Special Info: EDS Confirmed
Special Info: Type & Only Locality
Special Info: Author's Material

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

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