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Mixed Minerals

Sunday, 24 July 2022 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including bornite, calcite, chenevixite, chrysocolla, crocoite, and davidite-(la) and more from places like Tomboy mine, Savage Basin, Telluride dist., Colorado, United States, Mariposa mine, Terlingua dist., Brewster Co., Texas, United States, Wheal Gorland, St. Day dist., Cornwall, England, Inca de Oro, Atacama Region, Chile, Berezovskoe Au dep., Berezovskii, Sverdlovskaya Oblast', Urals, Russia, and Radium Hill, South Australia, Australia.

SOLD

Bornite

with Chalcopyrite - #AH58904

Details
Data
Provenance
Resources

Locality: Tomboy mine, Savage Basin, Telluride dist., Colorado, United States
Formula: Cu₅FeS₄
Availability: Sold
Size: 8 x 6.5 x 6 cm - Sm Cabinet
Tagged: sulfide , copper

An all sulfide specimen with dark blue Bornite, iridescent Chalcopyrite, Galena, and Sphalerite.

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

Collection: Arnold G Hampson Collection

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

Calcite

#52538

$60.00 - Available
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Details
Data
Provenance
Resources

Locality: Mariposa mine, Terlingua dist., Brewster Co., Texas, United States
Formula: CaCO₃
Availability: Available
Price: $60.00
Size: 5.5 x 4.5 x 2 cm - Sm Cabinet
Tagged: carbonate

Orange scalenohedral crystals of sharply terminated Calcite.

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: 3

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

SOLD

Chenevixite

#BW58852

Details
Data
Provenance
Resources

Locality: Wheal Gorland, St. Day dist., Cornwall, England
Formula: Cu(Fe³⁺,Al)(AsO₄)(OH)₂
Availability: Sold
Size: 6 x 4 x 5 cm - Sm Cabinet
Tagged: arsenate , copper
Special Info: Type Locality

Rich, grass green massive to finely crystalline Chenevixite from the type locality. Excellent specimen.

Chenevixite

Formula: Cu(Fe³⁺,Al)(AsO₄)(OH)₂
Crystal System: Monoclinic
Crystal Habit: Cryptocrystalline, Massive, Compact
Cleavage: None, None, None
Luster: Greasy (Oily)
Color: yellow green, dark green, olive green
Streak: greenish yellow
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 4

Collection: Bill Wilson Collection
Special Info: Type Locality

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

SOLD

Chrysocolla

#58857

Details
Data
Provenance
Resources

Locality: Inca de Oro, Atacama Region, Chile
Formula: (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O
Availability: Sold
Size: 3 x 2 x 2.5 cm - Thumbnail
Tagged: copper

Chrysocolla massses and tiny crystals in vug.

Chrysocolla

Formula: (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O
Crystal System: Orthorhombic
Crystal Habit: Botryoidal, Earthy, Stalactitic
Cleavage: None, None, None
Luster: Vitreous - Dull
Color: green, bluish green, blue, blackish blue, brown
Streak: light green
Class: Orthorhombic
Fracture: Brittle - Sectile
Hardness: 2.5-3.5

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

SOLD

Crocoite

#58853

Details
Data
Provenance
Resources

Locality: Berezovskoe Au dep., Berezovskii, Sverdlovskaya Oblast', Urals, Russia
Formula: PbCrO₄
Availability: Sold
Size: 4 x 3.5 x 3.5 cm - Miniature

Red, prismatitc crystals of Crocoite to 1cm. One crystal is nicely terminated.

Crocoite

Formula: PbCrO₄
Crystal System: Monoclinic
Crystal Habit: Crystalline - Coarse, Massive - Granular, Acicular
Cleavage: Distinct, Indistinct, Indistinct
Luster: Adamantine
Color: yellow, orange, red, red orange
Streak: yellowish orange
Class: Monoclinic - Prismatic
Fracture: Sectile
Hardness: 2.5-3

Collection: Don Cooke Collection

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

SOLD

Davidite-(La)

with Carnotite - #BW58834

Details
Data
Provenance
Resources

Locality: Radium Hill, South Australia, Australia
Formula: La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Availability: Sold
Size: 6 x 4.5 x 3.5 cm - Sm Cabinet
Tagged: REE mineral , vanadium
Special Info: Radioactive!!
Special Info: Type Locality

A solid black, metamict mass of Davidite-(La) with a vitreous to greasy luster, There are several areas with scales of yellow Carnotite. Excellent specimen.

Davidite-(La)

Formula: La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈
Crystal System: Trigonal
Crystal Habit: Massive, Anhedral Grains, Metamict
Cleavage: None, None, None
Luster: Vitreous - Metallic
Color: black, grayish black, brownish black, dark brown, reddish
Streak: brownish black
Class: Trigonal - Rhombohedral
Fracture: Brittle - Conchoidal
Hardness: 6

Collection: Bill Wilson Collection
Special Info: Radioactive!!
Special Info: Type Locality

On Dakota Matrix: Previously Sold Davidite-(La)
On Dakota Matrix: Other Available Davidite-(La)
WebMineral: View Davidite-(La)
Mindat: View Davidite-(La)

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