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Mixed Minerals

Sunday, 19 February 2023 04:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including alwilkinsite-(y), antlerite, billingsleyite, bohseite, gold, and greenockite and more from places like Limes, Val Daone, Trento, Trentino Alto Adige, Italy, Santa Catalina mine, Sierra Gorda, Atacama prov., Chile, Clara mine, Wolfach, Schwarzwald, Baden-Wurttemberg, Germany, Ermakovskoe Be deposit, Buryatia, Siberia, Russia, Fire Creek mine, Lander Co., Nevada, United States, and Berta quarry, El Papiol, Barcelona, Catalonia, Spain.

SOLD

Alwilkinsite-(Y)

#61045

Details
Data
Provenance
Resources

Locality: Limes, Val Daone, Trento, Trentino Alto Adige, Italy
Formula: Y(UO₂)₃(SO₄)₂O(OH)₃(H₂O)₇ · 7H₂O
Availability: Sold
Size: 3.3 x 2.2 x 1.3 cm - Miniature
Tagged: REE mineral
Special Info: Radioactive!!
Special Info: Type Locality

Bright yellow microscopic needles in nestled aggregates. Alwilkinsite-(Y) is named in honor of Al Wilkins, who discovered the mineral at the Blue Lizard mine, the original locality. This is the second reported locality.

Alwilkinsite-(Y)

Special Info: Radioactive!!
Special Info: Type Locality

Mineralpedia: View Alwilkinsite-(Y)
On Dakota Matrix: Previously Sold Alwilkinsite-(Y)
On Dakota Matrix: Other Available Alwilkinsite-(Y)
WebMineral: View Alwilkinsite-(Y)
Mindat: View Alwilkinsite-(Y)

SOLD

Antlerite

#BAC61089

Details
Data
Provenance
Resources

Locality: Santa Catalina mine, Sierra Gorda, Atacama prov., Chile
Formula: Cu²⁺₃SO₄(OH)₄
Availability: Sold
Size: 7.5 x 4 x 2.5 cm - Sm Cabinet
Tagged: copper

Flashy emerald green plates.

Antlerite

Formula: Cu²⁺₃SO₄(OH)₄
Crystal System: Orthorhombic
Crystal Habit: Acicular, Concretionary, Reniform
Cleavage: Perfect, None, None
Luster: Vitreous (Glassy)
Color: green, light green, emerald green, black, black green
Streak: pale green
Class: Orthorhombic - Dipyramidal
Fracture: Uneven
Hardness: 3

Collection: William & Anne Cook Collection

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

Billingsleyite

#61076

$195.00 - Available
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Details
Data
Provenance
Resources

Locality: Clara mine, Wolfach, Schwarzwald, Baden-Wurttemberg, Germany
Formula: Ag₇AsS₆
Availability: Available
Price: $195.00
Size: .9 x .6 x 1 cm - Thumbnail
Tagged: sulfide , silver

There are at least three individual crystals on this specimen. All are in the range of 0.1 to 0.2mm in size. Each are blocky and dull black and are associated with colorless Fluorite. Billingsleyite is a fairly rare mineral and is found at only 12 localities acrsos the world.

Billingsleyite

Formula: Ag₇AsS₆
Crystal System: Orthorhombic
Cleavage: Indistinct, None, None
Luster: Metallic
Color: lead gray
Class: Orthorhombic - Disphenoidal
Hardness: 2.5

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

SOLD

Bohseite

with Fluorite - #60956

Details
Data
Provenance
Resources

Locality: Ermakovskoe Be deposit, Buryatia, Siberia, Russia
Formula: Ca₄Be₃AlSi₉O₂₅(OH)₃
Availability: Sold
Size: 3.5 x 3 x 2.5 cm - Miniature
Tagged: beryllium , pegmatite mineral

Very rich specimen with pearly white crystal plates to 6mm with purple Fluorite and Microcline. Attractive rare mineral specimen.

Bohseite

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

Gold

#61088

$325.00 - Available
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Details
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Provenance
Resources

Locality: Fire Creek mine, Lander Co., Nevada, United States
Formula: Au
Availability: Available
Price: $325.00
Size: 2.3 x 2 x 1.8 cm - Thumbnail
Tagged: native element

Fire Creek Gold specimens are light Gold indicating a higher than normal portion of Silver. It has a reputation of some of the finest crystallized Gold showing beautiful arborescent growth with numerous forms of cubic crystals. This is a fine specimen.