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Ore Minerals

Thursday, 02 June 2022 08:00 AM

Introducing the "Ore Minerals" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including covellite, cylindrite, enargite, franckeite, galena, and hedenbergite and more from places like Summitville dist., Rio Grande Co., Colorado, United States, Poopo dist., Oruro dept., Bolivia, Leonard mine, Butte dist., Silver Bow Co., Montana, United States, San José mine, Oruro City, Oruro Dept., Bolivia, Blanchard mine, Socorro Co., New Mexico, United States, and Silver Star, Madison Co., Montana, United States.

SOLD

Covellite

- copper ore - #AH58555

Details
Data
Provenance
Resources

Locality: Summitville dist., Rio Grande Co., Colorado, United States
Formula: CuS
Availability: Sold
Size: 7 x 4.5 x 3.5 cm - Sm Cabinet
Tagged: sulfide , copper , ore specimen

Flakes and crystal grains of ourpole Covellite throughout specimen.

Covellite

Formula: CuS
Crystal System: Hexagonal
Crystal Habit: Platy, Foliated
Cleavage: Perfect, None, None
Luster: Metallic
Color: indigo blue, light blue, dark blue, black
Streak: black gray
Class: Hexagonal - Dihexagonal Dipyramidal
Fracture: Brittle
Hardness: 1.5-2

Collection: Arnold G Hampson Collection

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

SOLD

Cylindrite

- tin ore - #40939

Details
Data
Provenance
Resources

Locality: Poopo dist., Oruro dept., Bolivia
Formula: FePb₃Sn₄Sb₂S₁₄
Availability: Sold
Size: 8 x 5 x 3 cm - Sm Cabinet
Tagged: sulfide , ore specimen , tin

Fantastic tube-like crystals of Cylindrite, a rare tin sulfide. Excellent specimen.

Cylindrite

Formula: FePb₃Sn₄Sb₂S₁₄
Crystal System: Triclinic
Crystal Habit: Cylindrical, Radial
Cleavage: None, None, None
Luster: Metallic
Color: lead gray, grayish black
Streak: black
Class: Triclinic - Pinacoidal
Fracture: Malleable
Hardness: 2.5

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

SOLD

Enargite

with Pyrite - copper ore - #41352

Details
Data
Provenance
Resources

Locality: Leonard mine, Butte dist., Silver Bow Co., Montana, United States
Formula: Cu₃AsS₄
Availability: Sold
Size: 8 x 5 x 3 cm - Sm Cabinet
Tagged: sulfide , copper , ore specimen

Dozens of 3-4mm textbook crystals of Enargite with Pyrite.

Enargite

Formula: Cu₃AsS₄
Crystal System: Orthorhombic
Crystal Habit: Euhedral Crystals, Massive - Granular, Prismatic
Cleavage: Perfect, Distinct, Distinct
Luster: Metallic
Color: steel gray, blackish gray, violet black
Streak: black
Class: Orthorhombic - Pyramidal
Fracture: Uneven
Hardness: 3

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

SOLD

Franckeite

- tin, lead ore - #49700

Details
Data
Provenance
Resources

Locality: San José mine, Oruro City, Oruro Dept., Bolivia
Formula: Fe²⁺(Pb,Sn²⁺)₆Sn⁴⁺₂Sb³⁺₂S₁₄
Availability: Sold
Size: 8 x 6 x 3 cm - Sm Cabinet
Tagged: sulfide , ore specimen , tin

Franckeite is a rather rare mineral and an ore of tin. It has also quite the interesting mineral crystal habit. As seen in the photos, it forms interesting curls and round tubes. This locality is one of the best from Bolivia, all the other localities elsewhere in the world are inferior.

Franckeite

Formula: Fe²⁺(Pb,Sn²⁺)₆Sn⁴⁺₂Sb³⁺₂S₁₄
Crystal System: Triclinic
Crystal Habit: Tabular, Massive - Fibrous, Radial
Cleavage: Perfect, None, None
Luster: Metallic
Color: grayish black, blackish gray
Streak: grayish black
Class: Triclinic - Pinacoidal
Fracture: Flexible
Hardness: 2.5

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

SOLD

Galena

with Fluorite & Baryte - lead ore - #58571

Details
Data
Provenance
Resources

Locality: Blanchard mine, Socorro Co., New Mexico, United States
Formula: PbS
Availability: Sold
Size: 14 x 8 x 5 cm - Cabinet
Tagged: ore mineral

A good specimen full of grey Galena cubes to 1.9cm coated with Anglesite. Associated are Fluorite and Baryte.

Galena

Formula: PbS
Crystal System: Isometric
Crystal Habit: Euhedral Crystals, Massive - Granular, Massive
Cleavage: Perfect, Perfect, Perfect
Luster: Metallic
Color: light lead gray, dark lead gray
Streak: grayish black
Class: Isometric - Hexoctahedral
Fracture: Brittle
Hardness: 2.5

Collection: Jungles Collection

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

SOLD

Hedenbergite

- gold ore - #49107

Details
Data
Provenance
Resources

Locality: Silver Star, Madison Co., Montana, United States
Formula: CaFe²⁺Si₂O₆
Availability: Sold
Size: 15 x 11 x 11 cm - Cabinet
Tagged: ore specimen

The Silver Star was a gold mine in Madison county, which was the second largest gold district in Montana. The deposit was located at the far south end of the Boulder Batholith. Apparently, at least, some of the gold ore was hosted in Hedenbergite. This specimen, was collected by the late Chris van Laer. This Hedenbergite contains divergent bladed crystals to 8cm. Excellent specimen of good gold ore.

Hedenbergite

Formula: CaFe²⁺Si₂O₆
Crystal System: Monoclinic
Crystal Habit: Granular, Crystalline - Fine, Lamellar
Cleavage: Perfect, Indistinct, None
Luster: Vitreous - Pearly
Color: brownish green, gray green, grayish black, dark green, black
Streak: white green
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 5-6

Collection: Chris van Laer Collection

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

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