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Mixed Minerals

Sunday, 21 May 2023 05:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including laumontite, lemoynite, massicot, mattheddleite, mawbyite, and natronambulite and more from places like Crastu Muradu, Osilo, Sassari, Sardinia, Italy, Mont Saint-Hilaire, Montérégie, Québec, Canada, Mammoth mine, Tiger, Pinal Co., Arizona, United States, Red Gill mine, Caldbeck Fells, Cumbria, England, Kintore Opencut, Broken Hill, New South Wales, Australia, and Tanohata mine, Tohoku Region, Honshu Island, Japan.

Laumontite - BAC61690

Laumontite - BAC61690

Laumontite

var. leonhardite with Calcite - #BAC61690

$195.00 - Available
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Locality: Crastu Muradu, Osilo, Sassari, Sardinia, Italy
Formula: Ca(Si₄Al₂)O₁₂·4H₂O
Availability: Available
Price: $195.00
Size: 6.5 x 4 x 4.5 cm - Sm Cabinet

Beautiful radiating groups of Laumontite measuring 8mm at the largest. There are five good sprays.

Laumontite

Formula: Ca(Si₄Al₂)O₁₂·4H₂O
Crystal System: Monoclinic
Crystal Habit: Prismatic, Crystalline - Fine, Bladed
Cleavage: Perfect, Perfect, None
Luster: Vitreous (Glassy)
Color: brownish, gray, yellowish, pearl white, pink
Streak: white
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 3.5-4

Collection: William & Anne Cook Collection

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

Lemoynite - BAC61713

Lemoynite - BAC61713

Lemoynite

#BAC61713

$50.00 - Available
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Locality: Mont Saint-Hilaire, Montérégie, Québec, Canada
Formula: Na₂CaZr₂Si₁₀O₂₆·5-6H₂O
Availability: Available
Price: $50.00
Size: 1.7 x 1 x 1.5 cm - Thumbnail
Special Info: Type Locality

Radial groups to 4mm wide.

Lemoynite

Formula: Na₂CaZr₂Si₁₀O₂₆·5-6H₂O
Crystal System: Monoclinic
Crystal Habit: Bladed, Prismatic, Wheat Sheaf
Cleavage: Perfect, Perfect, Imperfect
Luster: Vitreous (Glassy)
Color: yellowish white, light blue
Streak: white
Class: Monoclinic - Prismatic
Fracture: Brittle
Hardness: 4

Collection: William & Anne Cook Collection
Special Info: Type Locality

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

Massicot - BAC61688

Massicot - BAC61688

Massicot

#BAC61688

$175.00 - Available
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Locality: Mammoth mine, Tiger, Pinal Co., Arizona, United States
Formula: PbO
Availability: Available
Price: $175.00
Size: 5 x 4 x 2.5 cm - Miniature

Red platy heavy mass.

Massicot

Formula: PbO
Crystal System: Orthorhombic
Crystal Habit: Massive, Scaly, Earthy
Cleavage: Distinct, Distinct, None
Luster: Adamantine
Color: yellow, reddish yellow
Streak: light yellow
Class: Orthorhombic - Dipyramidal
Fracture: Flexible
Hardness: 2

Collection: William & Anne Cook Collection

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

Mattheddleite - BAC61700

Mattheddleite - BAC61700

Mattheddleite

#BAC61700

$75.00 - Available
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Locality: Red Gill mine, Caldbeck Fells, Cumbria, England
Formula: Pb₁₀(SiO₄)₃(SO₄)₃Cl₂
Availability: Available
Price: $75.00
Size: 1.5 x 1.5 x 1 cm - Thumbnail

Ultra tiny white acicular crystals barely seen in a few little vugs.

Mattheddleite

Formula: Pb₁₀(SiO₄)₃(SO₄)₃Cl₂
Crystal System: Hexagonal
Crystal Habit: Radial, Rosette, Aggregates
Cleavage: Indistinct, None, None
Luster: Adamantine
Color: colorless, white
Streak: white
Class: Hexagonal - Dipyramidal
Hardness: 3.5-4.5

Collection: William & Anne Cook Collection

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

SOLD

Mawbyite - BAC61695

Mawbyite - BAC61695

Mawbyite

#BAC61695

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Locality: Kintore Opencut, Broken Hill, New South Wales, Australia
Formula: PbFe³⁺₂(AsO₄)₂(OH)₂
Availability: Sold
Size: 1.1 x 1 x 0.9 cm - Thumbnail
Tagged: arsenate
Special Info: Type Locality

Supermicro carpet of red Mawbyite, an uncommon if not rare arsenate.

Mawbyite

Formula: PbFe³⁺₂(AsO₄)₂(OH)₂
Crystal System: Monoclinic
Crystal Habit: Spherical, Wheat Sheaf
Cleavage: Good, None, None
Luster: Adamantine
Color: light brown, reddish brown, pale orange, orange brown
Streak: orange
Class: Monoclinic - Prismatic
Fracture: Conchoidal
Hardness: 4

Collection: William & Anne Cook Collection
Special Info: Type Locality

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

SOLD

Natronambulite - BAC61697

Natronambulite - BAC61697

Natronambulite

#BAC61697

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Locality: Tanohata mine, Tohoku Region, Honshu Island, Japan
Formula: NaMn²⁺₄Si₅O₁₄(OH)
Availability: Sold
Size: 2.2 x 1.8 x 1 cm - Thumbnail
Special Info: Type Locality

Orange, granular Natronambulite with one very nice gemmy crystal to about 1mm associated with crystalline Rhodonite.

Natronambulite

Formula: NaMn²⁺₄Si₅O₁₄(OH)
Crystal System: Triclinic
Cleavage: Perfect, Perfect, None
Luster: Vitreous (Glassy)
Color: pink orange
Streak: very pale orange
Class: Triclinic - Pinacoidal
Hardness: 5.5-6

Collection: William & Anne Cook Collection
Special Info: Type Locality

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

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