Ore Minerals, part 1

SOLD

Pyrrhotite

with Chalcopyrite - #RJW62094

Details
Data
Provenance
Resources

Locality: Chino mine, Santa Rita, Grant Co., New Mexico, United States
Formula: Fe₇S₈
Availability: Sold
Size: 5 x 4.5 x 3 cm - Miniature
Tagged: ore mineral , sulfide

It is hard to tell from the photos, but the freshly split surfaces on this specimen are a stunning. The Pyrrhotite is a bronzy-red color and the Chalcopyrite carries a nice gold color. I love the fresh fracture of the basic sulfides. Everyone should have a set of just the common sulfides showing the differences in color and luster they truly are amazing.

Pyrrhotite

Formula: Fe₇S₈
Crystal System: Monoclinic
Crystal Habit: Tabular, Platy, Massive - Granular
Cleavage: Imperfect, Imperfect, None
Luster: Metallic
Color: bronze, bronze red, dark brown
Streak: gray black
Class: Monoclinic - Prismatic
Fracture: Uneven
Hardness: 3.5-4

Collection: Robert J. Waidler Collection

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

SOLD

Silver

in Bornite - #DL62069

Details
Data
Provenance
Resources

Locality: San Martín mine, Sombrerete, Zacatecas, Mexico
Formula: Ag
Availability: Sold
Size: 11 x 10 x 8 cm - Cabinet
Tagged: ore mineral , copper , silver

A great piece with a chunk of bluish bronzy Bornite shot through with a large plate of Silver. Very cool specimen.

Silver

Formula: Ag
Crystal System: Isometric
Crystal Habit: Arborescent, Dendritic, Massive
Cleavage: None, None, None
Luster: Metallic
Color: silver white, gray white, gray
Streak: silver white
Class: Isometric - Hexoctahedral
Fracture: Hackly
Hardness: 2.5-3

Collection: Dr. David London Collection

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

SOLD

Sphalerite

with Galena - #AH58888

Details
Data
Provenance
Resources

Locality: Tomboy mine, Savage Basin, Telluride dist., Colorado, United States
Formula: ZnS
Availability: Sold
Size: 7 x 4.5 x 4 cm - Sm Cabinet
Tagged: ore mineral , sulfide

5 to 7mm crystal grains of greenish-yellow Sphalerite with Galena.

Sphalerite

Formula: ZnS
Crystal System: Isometric
Crystal Habit: Euhedral Crystals, Granular, Colloform
Cleavage: Perfect, Perfect, Perfect
Luster: Resinous - Greasy
Color: brown, yellow, red, green, black
Streak: brownish white
Class: Isometric - Hextetrahedral
Fracture: Uneven
Hardness: 3.5-4

Collection: Arnold G Hampson Collection

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

SOLD

Zincite

with Franklinite - #DL62070

Details
Data
Provenance
Resources

Locality: Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States
Formula: ZnO
Availability: Sold
Size: 12.5 x 8 x 5 cm - Cabinet
Tagged: ore mineral

Bright red Zincite with black granular Franklinite. Zincite is a primary mineral at Franklin and Sterling Hill in beds and veins formed by high temperature metamorphism of iron, zinc, and manganese marine carbonate sediment.

Zincite

Formula: ZnO
Crystal System: Hexagonal
Crystal Habit: Massive - Fibrous, Granular, Disseminated
Cleavage: Perfect, None, None
Luster: Sub Metallic
Color: yellow, dark yellow, dark red, orange
Streak: yellowish orange
Class: Hexagonal - Dihexagonal Pyramidal
Fracture: Sub Conchoidal
Hardness: 4-5

Collection: Dr. David London Collection

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

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