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Mixed Minerals

Sunday, 06 November 2022 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including alum-(na), clinojimthompsonite, creedite, fluorite, metavariscite, and mimetite and more from places like Sapper Fumarole, El Palmar, Quetzaltenango, Guatemala, Carlton quarry, Chester, Windsor Co., Vermont, United States, Qinglong Co., Qianxi'nan, Guizhou prov, China, Gordonsville mine, Carthage, Smith Co., Tennessee, United States, Lucin Hill, Box Elder Co., Utah, United States, and San Rafael mine, Nye Co., Nevada, United States.

Alum-(Na)

#BW59493

$40.00 - Available
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Locality: Sapper Fumarole, El Palmar, Quetzaltenango, Guatemala
Formula: NaAl(SO₄)₂·12H₂O
Availability: Available
Price: $40.00
Size: 3.5 x 3.5 x 2.5 cm - Miniature

Spherules of white to colorless Alum-(Na) in a spongy, very light weight matrix. I have no idea what this matrix is.

Alum-(Na)

Formula: NaAl(SO₄)₂·12H₂O
Crystal System: Isometric
Crystal Habit: Fibrous
Luster: Vitreous (Glassy)
Color: colorless
Class: Isometric - Diploidal
Hardness: 3

Collection: Bill Wilson Collection

On Dakota Matrix: Previously Sold Alum-(Na)
On Dakota Matrix: Other Available Alum-(Na)
WebMineral: View Alum-(Na)
Mindat: View Alum-(Na)

Clinojimthompsonite

with Chesterite & Jimthompsonite - #59637

$40.00 - Available
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Locality: Carlton quarry, Chester, Windsor Co., Vermont, United States
Formula: Mg₅Si₆O₁₆(OH)₂
Availability: Available
Price: $40.00
Size: 4 x 1.5 x 1.5 cm - Miniature
Special Info: Type Locality

These three minerals you cannot discern with any confidence. Basically they are light to dark green. The Pryite is easily recognized, of course. There is probably Talc and Anthophyllite in the specimen as well. A label from the Cureton Mineral Co. founded by the late Forrest Cureton comes with the specimen. Forrest was a great mineralogist, a friend of mine.

Clinojimthompsonite

Formula: Mg₅Si₆O₁₆(OH)₂
Crystal System: Monoclinic
Cleavage: Good, None, None
Luster: Silky - Pearly
Color: colorless, pink brown
Streak: white
Class: Monoclinic - Prismatic
Hardness: 2-2.5

Special Info: Type Locality

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

Creedite

#59591

$295.00 - Available
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Locality: Qinglong Co., Qianxi'nan, Guizhou prov, China
Formula: Ca₃Al₂(SO₄)(OH)₂F₈·2H₂O
Availability: Available
Price: $295.00
Size: 7 x 5 x 3.5 cm - Sm Cabinet

Nice eye-candy specimen with Creedite crystals from 1 to 5mm with a dusting of purple Fluorite. Gorgeous specimen, no damage.

Creedite

Formula: Ca₃Al₂(SO₄)(OH)₂F₈·2H₂O
Crystal System: Monoclinic
Crystal Habit: Granular, Radial, Prismatic
Cleavage: Perfect, None, None
Luster: Vitreous - Greasy
Color: colorless, violet, white
Streak: white
Class: Monoclinic - Prismatic
Fracture: Conchoidal
Hardness: 3.5

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

Fluorite

#59537

$75.00 - Available
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Locality: Gordonsville mine, Carthage, Smith Co., Tennessee, United States
Formula: CaF₂
Availability: Available
Price: $75.00
Size: 8 x 5.5 x 2.5 cm - Sm Cabinet

Purple Fluorite crystals to 9mm on edge. This specimen sits well and is nicely trimmed.

Fluorite

Formula: CaF₂
Crystal System: Isometric
Crystal Habit: Crystalline - Coarse, Massive - Granular, Disseminated
Cleavage: Three perfect, octahedral cleavages.
Luster: Vitreous (Glassy)
Color: purple, clear, yellow, green, red, blue
Streak: white
Geological Setting: Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments
Class: Isometric - Hexoctahedral
Fracture: Uneven
Hardness: 4

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

Metavariscite

#48744

$45.00 - Available
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Locality: Lucin Hill, Box Elder Co., Utah, United States
Formula: AlPO₄·2H₂O
Availability: Available
Price: $45.00
Size: 6.5 x 5 x 4 cm - Sm Cabinet
Tagged: phosphate

Excellent light green bladed crystals as singles and clusters.

Metavariscite

Formula: AlPO₄·2H₂O
Crystal System: Monoclinic
Cleavage: Good, None, None
Luster: Vitreous (Glassy)
Color: light green
Streak: white
Class: Monoclinic - Prismatic
Fracture: Brittle
Hardness: 3.5

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

Mimetite

#59619

$30.00 - Available
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Locality: San Rafael mine, Nye Co., Nevada, United States
Formula: Pb₅(AsO₄)₃Cl
Availability: Available
Price: $30.00
Size: 4.5 x 3 x 1.5 cm - Miniature
Tagged: arsenate

The specimen originated from Dr. Bill Wise, the late professor of mineralogy at the University of California at Santa Barbara. He collected it in 1975. The yellow is the Mimetite, gorgeous little crystals.

Mimetite

Formula: Pb₅(AsO₄)₃Cl
Crystal System: Hexagonal
Crystal Habit: Reniform, Globular, Prismatic
Cleavage: Imperfect, None, None
Luster: Adamantine - Resinous
Color: white, yellow, orange, brown, red
Streak: white
Class: Hexagonal - Dipyramidal
Fracture: Brittle - Conchoidal
Hardness: 3.5-4

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

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