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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 redledgeite, renardite, threadgoldite, vajdakite, and vesignieite and more from places like Saranovskii mine, Urals Region, Russia, Shinkolobwe, Katanga, Democratic Republic of Congo, Kobokobo Pegmatite, Sud-Kivu, Democratic Republic of Congo, Geschieber vein, Svornost mine, Jachymov, Karlovy, Czech Republic, and Mashamba West mine, Kolwezi dist., Katanga, Democratic Rep. of Congo.

SOLD

Redledgeite

with Uvarovite - #65478

Details
Data
Provenance
Resources

Locality: Saranovskii mine, Urals Region, Russia
Formula: Ba_xCr_2xTi⁴⁺_8-2xO₁₆
Availability: Sold
Size: 8 x 3.6 x 3.7 cm - Sm Cabinet

Choice specimen of extremely rare olive green acicular crystals in groups to about 3mm surrounded by green crystals of Uvarovite. On the backside are groups of purple chromian Clinochlore.

Redledgeite

Formula: Ba_xCr_2xTi⁴⁺_8-2xO₁₆
Crystal System: Tetragonal
Cleavage: Good, None, None
Luster: Adamantine
Color: yellow green, black
Streak: gray white
Class: Tetragonal - Dipyramidal
Hardness: 6-7

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

SOLD

Renardite

with Torbernite - #65550

Details
Data
Provenance
Resources

Locality: Shinkolobwe, Katanga, Democratic Republic of Congo
Formula: Pb(UO₂)₄(PO₄)₂(OH)₄ · H₂O
Availability: Sold
Size: 5 x 3.5 x 2 cm - Miniature
Tagged: phosphate
Special Info: Radioactive!!

Glassy yellow, acicular crystals to 2mm with dark green Torbernite on Curite.

Renardite

Formula: Pb(UO2)4(PO4)2(OH)4�7(H2O)
Crystal System: Orthorhombic
Crystal Habit: Druse
Cleavage: Perfect, None, None
Color: yellow
Class: Orthorhombic - Dipyramidal
Hardness: -

Special Info: Radioactive!!

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

SOLD

Threadgoldite

#65433

Details
Data
Provenance
Resources

Locality: Kobokobo Pegmatite, Sud-Kivu, Democratic Republic of Congo
Formula: Al(UO₂)₂(PO₄)₂(OH)·8H₂O
Availability: Sold
Size: 2 x 1.5 x 1.1 cm - Thumbnail
Tagged: phosphate
Special Info: Radioactive!!

Canary yellow Threadgoldite coatings on matrix,

Threadgoldite

Formula: Al(UO₂)₂(PO₄)₂(OH)·8H₂O
Crystal System: Monoclinic
Crystal Habit: Micaceous, Tabular
Cleavage: Perfect, None, None
Color: greenish yellow
Streak: yellow white
Class: Monoclinic - Prismatic
Hardness: 2-3

Special Info: Radioactive!!

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

SOLD

Vajdakite

#65503

Details
Data
Provenance
Resources

Locality: Geschieber vein, Svornost mine, Jachymov, Karlovy, Czech Republic
Formula: (Mo⁶⁺O₂)₂As³⁺₂O₅·3H₂O
Availability: Sold
Size: 2 x 1.5 x 0.5 cm - Thumbnail
Special Info: Type & Only Locality

Crystalline groups of mint green Vajdakite in several areas on the matrix. This is the type and only locality in the world. Very rare.

Vajdakite

Formula: (Mo⁶⁺O₂)₂As³⁺₂O₅·3H₂O
Crystal System: Monoclinic
Crystal Habit: Acicular, Aggregates
Cleavage: Perfect, Good, None
Luster: Vitreous (Glassy)
Color: green, greenish gray
Streak: light grayish green
Class: Monoclinic - Prismatic
Hardness: -

Special Info: Type & Only Locality

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

SOLD

Vesignieite

#65519

Details
Data
Provenance
Resources

Locality: Mashamba West mine, Kolwezi dist., Katanga, Democratic Rep. of Congo
Formula: Cu₃Ba(VO₄)₂(OH)₂
Availability: Sold
Size: 6 x 5.5 x 4 cm - Sm Cabinet
Tagged: copper , vanadium

An incredibly rich specimen with large botryoids of dark olive green crystal groups. These groups are about 3 to 4mm across. This is an attractive specimen with the Vesignieite running up the center of the matrix.

Vesignieite

Formula: Cu₃Ba(VO₄)₂(OH)₂
Crystal System: Monoclinic
Crystal Habit: Lamellar, Euhedral Crystals, Platy
Cleavage: Good, None, None
Luster: Vitreous (Glassy)
Color: yellow green, dark green, olive green
Streak: light green
Class: Monoclinic - Prismatic
Fracture: Uneven
Hardness: 3.5-4

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

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