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Mixed Minerals

Friday, 30 August 2024 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including copper, diopside, joseite, nagyagite, pyrargyrite, and tetrahedrite and more from places like Central mine, Central, Keweenaw Co., Michigan, United States, Commercial quarry, Crestmore, Riverside Co., California, United States, Glacier Gulch, Smithers, British Columbia, Canada, Săcărâmb (Nagyág in Hungary), Romania, Reese River dist., Lander Co., Nevada, United States, and Pribram, Bohemia, Czech Republic.

Copper

#64504

$525.00 - Available
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Locality: Central mine, Central, Keweenaw Co., Michigan, United States
Formula: Cu
Availability: Available
Price: $525.00
Size: 5.5 x 3 x 2 cm - Sm Cabinet
Tagged: native element

Superb Copper specimen showing several cubic crystals and a spinel law twin 2cm long along the twinning plane.

Copper

Formula: Cu
Crystal System: Isometric
Crystal Habit: Nodular, Arborescent
Cleavage: None, None, None
Luster: Metallic
Color: brown, copper red, light pink, red
Streak: rose
Class: Isometric - Hexoctahedral
Fracture: Hackly
Hardness: 2.5-3

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

Diopside

in Calcite - #64616

$35.00 - Available
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Locality: Commercial quarry, Crestmore, Riverside Co., California, United States
Formula: CaMgSi₂O₆
Availability: Available
Price: $35.00
Size: 6 x 4 x 2.3 cm - Sm Cabinet

Yellowish green anhedral crystals throughout mass with blue Calcite.

Diopside

Formula: CaMgSi₂O₆
Crystal System: Monoclinic
Crystal Habit: Prismatic, Blocky, Granular
Cleavage: Good, Indistinct, None
Luster: Vitreous (Glassy)
Color: blue, brown, colorless, green, gray
Streak: white green
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 6

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

Joseite

#64564

$125.00 - Available
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Locality: Glacier Gulch, Smithers, British Columbia, Canada
Formula: Bi4TeS2
Availability: Available
Price: $125.00
Size: 3 x 2 x 1.2 cm - Thumbnail
Tagged: sulfide , tellurium , bismuth
Special Info: Antique Specimen

Flashy and silvery crystals throughout mass. It's another oldie from the Seaman with a Ward's label. Comes with that little vial full of metallic crystal grains.

Joseite

Formula: Bi4(S,Te)3
Crystal System: Trigonal
Luster: Metallic
Color: gray, grayish black
Class: Trigonal - Hexagonal Scalenohedral
Hardness: 2

Collection: Ex. A.E. Seaman Museum
Special Info: Antique Specimen

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

Nagyagite

with Hessite - #64541

$375.00 - Available
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Locality: Săcărâmb (Nagyág in Hungary), Romania
Formula: [Pb(Pb,Sb)S₂][(Au,Te)]
Availability: Available
Price: $375.00
Size: 6 x 4.5 x 1.7 cm - Sm Cabinet
Tagged: sulfide , silver , gold
Special Info: Antique Specimen
Special Info: Type Locality

Dark grey to black crystal plates of Nagyagite with rod-like crystals of Hessite. See prov. tab for old label. There are three clusters of crystals to 4mm in vugs. Nagyagite from Nagyag is incredibly difficult mineral to obtain.

Nagyagite

Formula: [Pb(Pb,Sb)S₂][(Au,Te)]
Crystal System: Tetragonal
Crystal Habit: Granular, Lamellar, Platy
Cleavage: Perfect, None, None
Luster: Metallic
Color: lead gray, black
Streak: gray black
Class: Tetragonal - Disphenoidal
Fracture: Hackly
Hardness: 1.5-2

Collection: Ex. A.E. Seaman Museum
Special Info: Antique Specimen
Special Info: Type Locality

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

Pyrargyrite

#64572

$125.00 - Available
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Locality: Reese River dist., Lander Co., Nevada, United States
Formula: Ag₃SbS₃
Availability: Available
Price: $125.00
Size: 5 x 4 x 2 cm - Miniature
Tagged: sulfide , silver
Special Info: Antique Specimen

Basically an ore grade specimen from a remote & historic locality in Nevada. The Pyrargyrite occurs as a silvery mass throughout the specimen. With the aid of a microscope, a scratch shows a cherry red color. See prov. tab for old label.