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Tucson Show Finds

Wednesday, 26 February 2025 06:00 PM

Introducing the "Tucson Show Finds" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including jensenite, kasolite, lasalite, lazaraskeite, libethenite, and niedermayrite and more from places like Centennial Eureka mine, Tintic dist., Juab Co., Utah, United States, Tirpersdorf, Vogtlandkreis, Saxony, Germany, Vanadium Queen mine, near La Sal, San Juan Co., Utah, United States, Pusch Ridge, Santa Catalina Mtns., Pima Co., Arizona, Unites States, Mount Oxide, Mt. Isa dist., Queensland, Australia, and Kelly mine, Socorro Co., New Mexico, United States.

SOLD

Jensenite

#65489

Details
Data
Provenance
Resources

Locality: Centennial Eureka mine, Tintic dist., Juab Co., Utah, United States
Formula: Cu²⁺₃Te⁶⁺O₆·2H₂O
Availability: Sold
Size: 1.8 x 1.5 x 0.6 cm - Thumbnail
Tagged: copper , tellurium
Special Info: Type Locality
Special Info: EDS Confirmed

Tiny 0.3mm emerald green cubic-looking (it is monoclinic and usually prismatic) crystal at the arrow. Comes with Martin Jensen's hand-written label. Very rare.

Jensenite

Formula: Cu²⁺₃Te⁶⁺O₆·2H₂O
Crystal System: Monoclinic
Crystal Habit: Subhedral Crystals, Pseudo Rhombohedral, Cryptocrystalline
Cleavage: Fair, None, None
Luster: Adamantine
Color: emerald green
Streak: emerald green
Class: Monoclinic - Prismatic
Fracture: Brittle - Uneven
Hardness: 3-4

Special Info: Type Locality
Special Info: EDS Confirmed

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

SOLD

Kasolite

#65568

Details
Data
Provenance
Resources

Locality: Tirpersdorf, Vogtlandkreis, Saxony, Germany
Formula: Pb(UO₂)SiO₄·H₂O
Availability: Sold
Size: 2 x 1.8 x 2.5 cm - Thumbnail
Special Info: Radioactive!!

Tiny, less than, 0.2mm spherulites with good rich coverage. They are hard to see in the photos.

Kasolite

Formula: Pb(UO₂)SiO₄·H₂O
Crystal System: Monoclinic
Crystal Habit: Radial, Prismatic, Fibrous
Cleavage: Perfect, Good, Good
Luster: Resinous - Greasy
Color: green, gray green, yellow, yellow brown, reddish orange
Streak: light brownish yellow
Class: Monoclinic - Prismatic
Fracture: Uneven
Hardness: 4

Special Info: Radioactive!!

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

SOLD

Lasalite

#65419

Details
Data
Provenance
Resources

Locality: Vanadium Queen mine, near La Sal, San Juan Co., Utah, United States
Formula: Na₂Mg₂(V₁₀O₂₈)·20H₂O
Availability: Sold
Size: 5 x 3 x 2.5 cm - Miniature
Tagged: vanadium
Special Info: Type Locality

Bright orange crystal aggregates across face of the specimen.

Lasalite

Formula: Na₂Mg₂(V₁₀O₂₈)·20H₂O
Crystal System: Monoclinic
Crystal Habit: Prismatic, Efflorescences
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: yellow, yellow orange
Streak: yellow
Class: Monoclinic - Prismatic
Fracture: Brittle
Hardness: 1

Special Info: Type Locality

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

SOLD

Lazaraskeite

#65572

Details
Data
Provenance
Resources

Locality: Pusch Ridge, Santa Catalina Mtns., Pima Co., Arizona, Unites States
Formula: Cu(C₂H₃O₃)₂
Availability: Sold
Size: 2.5 x 1.8 x 1.3 cm - Thumbnail
Tagged: copper

Beautiful sky blue, translucent, prismatic crystals to 1mm in several areas on the matrix. Lazaraskeite is an organic compound. Type and only locality.

Lazaraskeite

Formula: Cu(C₂H₃O₃)₂

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

SOLD

Libethenite

with Turquoise - #65552

Details
Data
Provenance
Resources

Locality: Mount Oxide, Mt. Isa dist., Queensland, Australia
Formula: Cu₂PO₄(OH)
Availability: Sold
Size: 7 x 4 x 2.5 cm - Sm Cabinet
Tagged: phosphate , copper

Lustrous green micro crystals of Libethenite. The orthorhombic crystals are equant, dipyramidal with virtually no prism faces. The combination of the two minerals makes for a good contrast. The Turquoise is sugary blue.

Libethenite

Formula: Cu₂PO₄(OH)
Crystal System: Orthorhombic
Crystal Habit: Prismatic, Druse, Globular
Cleavage: Indistinct, Indistinct, None
Luster: Vitreous - Greasy
Color: green, dark green, blackish green, light olive green, dark olive green
Streak: light green
Class: Orthorhombic - Dipyramidal
Fracture: Brittle
Hardness: 4