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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, metavariscite, mimetite, and silver and more from places like Sapper Fumarole, El Palmar, Quetzaltenango, Guatemala, Carlton quarry, Chester, Windsor Co., Vermont, United States, Lucin Hill, Box Elder Co., Utah, United States, San Rafael mine, Nye Co., Nevada, United States, and Keeley-Frontier mine, Cobalt dist., Ontario, Canada.

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)

SOLD

Clinojimthompsonite

with Chesterite & Jimthompsonite - #59637

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Locality: Carlton quarry, Chester, Windsor Co., Vermont, United States
Formula: Mg₅Si₆O₁₆(OH)₂
Availability: Sold
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

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.