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Rare & Systematic Minerals

Sunday, 30 April 2023 06:00 PM

Introducing the "Rare & Systematic Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including oneillite, panasqueiraite, paraotwayite, parapierrotite, paraschachnerite, and parasymplesite and more from places like Norra Kärr, Gränna, Jönköping, Småland, Sweden, Panasqueira, Covilha, Castelo Branco dist., Portugal, Vaca Muerta meteorite, Taltal, Antofagasta, Chile, Allchar, Roszdan, Macedonia, Bambollita mine, Moctezuma, Sonora, Mexico, and Mina Ojuela, Mapimi, Durango, Mexico.

SOLD

Oneillite

#BAC61529

Details
Data
Provenance
Resources

Locality: Norra Kärr, Gränna, Jönköping, Småland, Sweden
Formula: Na₁₅Ca₃Mn₃Fe₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
Availability: Sold
Size: 2.3 x 1.1 x 0.7 cm - Thumbnail

Orange-red crystalline grains.

Oneillite

Formula: Na₁₅Ca₃Mn₃Fe₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
Crystal System: Trigonal
Crystal Habit: Anhedral Grains
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: yellowish brown
Streak: white
Class: Trigonal - Pyramidal
Fracture: Brittle - Uneven
Hardness: 5-6

Collection: William & Anne Cook Collection

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

Panasqueiraite

with Arsenopyrite - #BAC61513

$55.00 - Available
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Details
Data
Provenance
Resources

Locality: Panasqueira, Covilha, Castelo Branco dist., Portugal
Formula: CaMgPO₄(OH)
Availability: Available
Price: $55.00
Size: 5.5 x 3 x 1 cm - Sm Cabinet
Tagged: phosphate , pegmatite mineral
Special Info: Type Locality

Flesh colored Panasqueiraite, a rare Ca-Mg phosphate found only in Portugal. It is associated with Arsenopyrite and Quartz. The specimen is repaired along a Quartz fractured.

Panasqueiraite

Formula: CaMgPO₄(OH)
Crystal System: Monoclinic
Cleavage: Indistinct, None, None
Luster: Silky - Pearly
Color: white, pink
Streak: white
Class: Monoclinic - Prismatic
Hardness: 5

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

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

SOLD

Paraotwayite

with Retgersite on meteorite - #BAC61520

Details
Data
Provenance
Resources

Locality: Vaca Muerta meteorite, Taltal, Antofagasta, Chile
Formula: Ni(OH)_2-x(SO₄,CO₃)_0.5x
Availability: Sold
Size: 2 x 2.5 x 0.9 cm - Thumbnail
Tagged: nickel

This is a stony iron meteorite composed of iron and other elements, namely Ni, Si, P, Ti and S. This was a large meteorite fall partially descripbed below from Mindat. In all probability the green minerals shown here (light greenish yellow for Paraotwayite and darker green is Retgersite) are from wearthering here on Earth. On the sawed surface grains of silvery iron flashes can be seen.

Mindat: "The Vaca Muerta meteorite is the most massive of the 216 mesosiderites recovered between 1842 and 2014. It is more than 4 times as massive as the second most massive mesosiderite, Bondoc, an 888.6 kg mass recovered from the Philippines in 1956. Several pieces up to 25 kg in mass were found in the late 19th century. A large strewnfield (11.5 km x 2.1 km)"