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Mixed Minerals

Sunday, 29 November 2020 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including arthurite, becquerelite, dugganite, kuksite, lindbergite, and owyheeite and more from places like Majuba Hill mine, Pershing Co., Nevada, United States, Happy Jack mine, White Canyon, San Juan Co., Utah, United States, Black Pine mine, Philipsburg, Granite Co., Montana, United States, Boca Rica mine, Sapucaia, Galiléia, Minas Gerais, Brazil, and Morey dist., Nye Co., Nevada, United States.

SOLD

Arthurite

#54646

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Locality: Majuba Hill mine, Pershing Co., Nevada, United States
Formula: CuFe³⁺₂(AsO₄)₂(OH)₂·4H₂O
Availability: Sold
Size: 6 x 3.5 x 3 cm - Sm Cabinet
Tagged: arsenate , copper

Green sprays of Arthurite to 1mm scattered on matrix.

Arthurite

Formula: CuFe³⁺₂(AsO₄)₂(OH)₂·4H₂O
Crystal System: Monoclinic
Crystal Habit: Prismatic, Acicular, Spherical
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: apple green, emerald green
Streak: light green
Class: Monoclinic - Prismatic
Fracture: Brittle
Hardness: 3-4

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

Becquerelite

#AH54674

$250.00 - Available
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Locality: Happy Jack mine, White Canyon, San Juan Co., Utah, United States
Formula: Ca(UO₂)₆O₄(OH)₆·8H₂O
Availability: Available
Price: $250.00
Size: 7.5 x 4.5 x 2 cm - Sm Cabinet
Special Info: Radioactive!!

Just pulled these two out of a hidden flat from the Hampson collection. This specimen is rich in bright yellow, glassy Becquerelite crystals to 1.5mm. There is also covarage in the backside.

Becquerelite

Formula: Ca(UO₂)₆O₄(OH)₆·8H₂O
Crystal System: Orthorhombic
Crystal Habit: Crystalline - Fine
Cleavage: Perfect, Perfect, None
Luster: Resinous
Color: brownish yellow, golden yellow, orange, lemon
Streak: yellow
Class: Orthorhombic - Pyramidal
Hardness: 2.5

Collection: Arnold G Hampson Collection
Special Info: Radioactive!!

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

Dugganite

with Quartz twin, Olivenite - #54683

$295.00 - Available
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Locality: Black Pine mine, Philipsburg, Granite Co., Montana, United States
Formula: Pb₃Zn₃(TeO₆)(AsO₄)₂
Availability: Available
Price: $295.00
Size: 4.5 x 4.5 x 3 cm - Miniature
Tagged: arsenate , tellurium
Special Info: EDS Confirmed

A very aesthetic specimen with rare minerals and Japan law Quartz twin (1.1cm). The Dugganite crystals are fantastic and are white to colorless, some with purple zoning. Most of the green is Malachite and Pseudomalachite. Great piece!

Dugganite

Formula: Pb₃Zn₃(TeO₆)(AsO₄)₂
Crystal System: Hexagonal
Cleavage: Indistinct, None, None
Luster: Adamantine
Color: colorless, green, white
Streak: white
Class: Hexagonal - Dihexagonal Dipyramidal
Fracture: Brittle
Hardness: 3

Special Info: EDS Confirmed

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

Kuksite

with Philipsburgite and Pseudomalachite - #54681

$195.00 - Available
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Locality: Black Pine mine, Philipsburg, Granite Co., Montana, United States
Formula: Pb₃Zn₃Te⁶⁺O₆(PO₄)₂
Availability: Available
Price: $195.00
Size: 4 x 2 x 2.5 cm - Miniature
Tagged: phosphate , tellurium
Special Info: EDS Confirmed

Excellent pearly white rosettes on Quartz with green rosettes of Philipsburgite, prismatic Brochantite and lighter green Pseudomalachite.

Kuksite

Formula: Pb₃Zn₃Te⁶⁺O₆(PO₄)₂
Crystal System: Orthorhombic
Crystal Habit: Tabular
Cleavage: Perfect, None, None
Luster: Adamantine
Color: gray
Streak: white
Class: Orthorhombic - Dipyramidal
Fracture: Brittle
Hardness: 5

Special Info: EDS Confirmed

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

SOLD

Lindbergite

with Strengite - #BN54664

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Provenance
Resources

Locality: Boca Rica mine, Sapucaia, Galiléia, Minas Gerais, Brazil
Formula: MnC₂O₄·2H₂O
Availability: Sold
Size: 2 x 2 x 1 cm - Thumbnail
Tagged: pegmatite mineral

At least three white "spots" from 0.5 to 1mm of Lindbergite. The purple is Strengite and the golden brown in Frondelite.

Lindbergite

Formula: MnC₂O₄·2H₂O
Crystal System: Monoclinic
Crystal Habit: Prismatic, Pseudomorphous
Cleavage: Perfect, None, None
Luster: Vitreous (Glassy)
Color: white, grayish white
Streak: white
Class: Monoclinic - Prismatic
Fracture: Friable
Hardness: 2.5

Collection: Dr. Buford Nichols Collection

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

Owyheeite

with Rhodochrosite - #46206

$75.00 - Available
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Locality: Morey dist., Nye Co., Nevada, United States
Formula: Ag₃Pb₁₀Sb₁₁S₂₈
Availability: Available
Price: $75.00
Size: 4 x 4 x 3.5 cm - Miniature
Tagged: sulfide , silver

Very nice acicular crystals of Owyheeite, some with a slight curvature down the length of the crystal. The longest seems to be over 1mm and some of the crystals are altered to a white substance, but most are the typical grey. The pink are rhombic crystals of Rhodocrosite. Across most of the specimen are black or dark grey formless crystals of which are probably another silver mineral, perhaps Pyrargyrite, as some red reflections can be seen, Nice piece.

Owyheeite

Formula: Ag₃Pb₁₀Sb₁₁S₂₈
Crystal System: Orthorhombic
Crystal Habit: Acicular, Massive - Fibrous, Fibrous
Cleavage: Perfect, None, None
Luster: Metallic
Color: lead gray, gray blue, yellowish, silver gray
Streak: reddish brown
Class: Orthorhombic - Dipyramidal
Fracture: Brittle
Hardness: 2.5

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

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