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Ore Minerals part 2

Monday, 07 August 2023 03:30 PM

Introducing the "Ore Minerals part 2" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including covellite, ferberite, galena and more from places like Butte dist., Silver Bow Co., Montana, United States, Summitville dist., Rio Grande Co., Colorado, United States, near Boulder, Boulder Co., Colorado, United States, Huanzala mine, Huallanca dist., Huánuco, Peru, Mountain Springs mine, Rico dist., Dolores Co., Colorado, United States.

SOLD

Covellite

#AH59247

Details
Data
Provenance
Resources

Locality: Butte dist., Silver Bow Co., Montana, United States
Formula: CuS
Availability: Sold
Size: 7 x 7 x 5 cm - Sm Cabinet
Tagged: sulfide , copper , ore specimen

Beautifully iridescent indigo blue massive Covellite with Pyrite.

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

Covellite

#AH62080

Details
Data
Provenance
Resources

Locality: Summitville dist., Rio Grande Co., Colorado, United States
Formula: CuS
Availability: Sold
Size: 15 x 12 x 0.5 cm - Cabinet
Tagged: sulfide , copper , ore specimen

A thin slab of breccia cemented by purplish Covellite. It is a good example of how the copper mineralization occured at Summitville.

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

Ferberite

#62261

Details
Data
Provenance
Resources

Locality: near Boulder, Boulder Co., Colorado, United States
Formula: Fe²⁺WO₄
Availability: Sold
Size: 7 x 5.5 x 3.5 cm - Sm Cabinet
Tagged: ore mineral

Heavy specimen of granular Ferberite with one side carpeted by micro, less than 1mm, Ferberite crystals.

Ferberite

Formula: Fe²⁺WO₄
Crystal System: Monoclinic
Crystal Habit: Prismatic, Lamellar, Massive - Granular
Cleavage: Perfect, Parting, Parting
Luster: Sub Metallic
Color: black
Streak: brownish black
Class: Monoclinic - Prismatic
Fracture: Brittle - Uneven
Hardness: 4.5

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

SOLD

Galena

ps after Sphalerite - #RW62246

Details
Data
Provenance
Resources

Locality: Huanzala mine, Huallanca dist., Huánuco, Peru
Formula: PbS
Availability: Sold
Size: 8 x 7.5 x 3.5 cm - Sm Cabinet
Tagged: ore mineral , sulfide

Large, former, Sphalerite crystals totally replaced by Galena. The is a choice specimen for pseudomorph and a very rare occurence not just for this locality but all localites. The crystals have the morphology of Sphalerite, which reach 2.6cm across. Exceptional specimen!!