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Rare Minerals

Sunday, 29 October 2023 03:00 PM

Introducing the "Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including koninckite, mosandrite-(ce), plimerite, seligmannite, serpierite, and tocornalite and more from places like Richelle, Visé, Liège Province, Belgium, Eveslogchorr Mt, Khibiny Massif, Kola Peninsula, Russia, Broken Hill, New South Wales, Australia, Palomo mine, Castrovirreyna Prov., Huancavelica, Peru, Mi Fiel Rosita mine, Huasco Prov., Atacama, Chile, and Dives mine, La Paz Co., Arizona, United States.

SOLD

Koninckite

#BAC62689

Details
Data
Provenance
Resources

Locality: Richelle, Visé, Liège Province, Belgium
Formula: Fe³⁺PO₄·3H₂O
Availability: Sold
Size: 3 x 2.3 x 1.5 cm - Thumbnail
Tagged: phosphate

Orange spheroidal crystals.

Koninckite

Formula: Fe³⁺PO₄·3H₂O
Crystal System: Tetragonal
Crystal Habit: Spherical, Aggregates
Cleavage: Good, None, None
Luster: Vitreous (Glassy)
Color: yellow, white
Streak: white
Class: Tetragonal
Hardness: 3.5-4

Collection: William & Anne Cook Collection

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

Mosandrite-(Ce)

#62685

$40.00 - Available
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Details
Provenance
Resources

Locality: Eveslogchorr Mt, Khibiny Massif, Kola Peninsula, Russia
Formula: (Ca,Ce)₄(□,Ca,Na)₃Ti(Si₂O₇)₂(H₂O,OH,F)₄·H₂O
Availability: Available
Price: $40.00
Size: 5 x 3.5 x 4 cm - Miniature
Tagged: REE mineral

Nice glassy yellow-brown Mosandrite. Comes with an old Russian label.

On Dakota Matrix: Previously Sold Mosandrite-(Ce)
On Dakota Matrix: Other Available Mosandrite-(Ce)
WebMineral: View Mosandrite-(Ce)
Mindat: View Mosandrite-(Ce)

SOLD

Plimerite

#62218

Details
Data
Provenance
Resources

Locality: Broken Hill, New South Wales, Australia
Formula: ZnFe³⁺₄(PO₄)₃(OH)₅
Availability: Sold
Size: 2.3 x 1.5 x 1.5 cm - Thumbnail
Tagged: phosphate
Special Info: Type Locality

Both the dark green to grass green globular crystals as well as the yellow fibrous and acicular crystals on this specimen is Plimerite. Plimerite occurs in four worldwide localities as reported thus far. This is a rich specimen.

Named after Ian Pilmer, an Australian Professor of Mineralogy at the University of Adelaide and an Emeritus Professor of Earth Sciences as the University of Melbourne who made large contributions to ore deposit geology, particularly the geology of the Broken Hill deposit in New South Wales, Australia.

Plimerite

Formula: ZnFe³⁺₄(PO₄)₃(OH)₅
Crystal System: Orthorhombic
Class: Orthorhombic - Dipyramidal
Hardness: -

Special Info: Type Locality

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

SOLD

Seligmannite

with Pyrite on Quartz - #CL62671

Details
Data
Provenance
Resources

Locality: Palomo mine, Castrovirreyna Prov., Huancavelica, Peru
Formula: CuPbAsS₃
Availability: Sold
Size: 7.5 x 4.5 x 2 cm - Sm Cabinet
Tagged: sulfide , copper

Clusters of stubby prismatic, deeply striated crystals with flat and shallow pyramidal terminations. The crystals occur as singles (1 to 1.5mm) and groups on Pyrite and Chalcopyrite on Quartz.