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Mixed and Rare Minerals

Sunday, 11 February 2024 06:00 PM

Introducing the "Mixed and Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including minium, moctezumite, muirite, normandite, perroudite, and sperrylite and more from places like Tsumeb mine, Tsumeb, Namibia, Bambolla mine, Moctezuma, Sonora, Mexico, Esquire #7 claim, Big Creek, Fresno Co., California, United States, Mt. Kaskasnyunchorr, Khibiny Massif, Kola Peninsula, Russia, Cap Garonne mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France, and Sudbury dist., Ontario, Canada.

Minium

#BAC63244
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
Pb2+2Pb4+O4 
Availability
Sold
Size
4 x 1.8 x 1.5 cm - Miniature 

Bright red crystalline and sparkly Minium in thick to very thin veinlets cutting a siliceous matrix with minor Malachite.


Minium

Formula
Pb2+2Pb4+O4 
Crystal System
Tetragonal 
Crystal Habit
Scaly, Massive - Granular, Striated 
Cleavage
Perfect, Perfect, None 
Luster
Adamantine 
Color
light red, brownish red, vivid red, yellowish red 
Streak
yellowish orange 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Earthy 
Hardness
2.5-3 
Collection
William & Anne Cook Collection
Mineralpedia
View Minium
On Dakota Matrix
Previously Sold Minium
On Dakota Matrix
Other Available Minium
WebMineral
View Minium
Mindat
View Minium

Moctezumite

with Zemannite - #BAC62753
Locality
Bambolla mine, Moctezuma, Sonora, Mexico 
Formula
Pb(UO2)(Te4+O3)2 
Availability
Available
Price
$200.00
Size
2.8 x 2.1 x 2 cm - Thumbnail 
Tagged
tellurium  

Excellent orange crystal plates from 1 to 2mm aggregates with brown, acicular Zemannite.


Moctezumite

Formula
Pb(UO2)(Te4+O3)2 
Crystal System
Monoclinic 
Cleavage
Perfect, None, None 
Color
orange, dark orange, brownish orange 
Class
Monoclinic - Prismatic 
Hardness
Collection
William & Anne Cook Collection

Muirite

#REW59892
Locality
Esquire #7 claim, Big Creek, Fresno Co., California, United States 
Formula
Ba10Ca2Mn2+TiSi10O30(OH)10 
Availability
Sold
Size
5 x 4.5 x 2.5 cm - Miniature 
Special Info
Type Locality 

Orange crystal grains spread profusely across matrix. It's one of the richest specimens I've seen of Muirite. Muirite named after the great conservationist and photographer John Muir. Mindat has a great photo of him Click here. The minerals is extremely rare and occurs at two localities on Earth.


Muirite

Formula
Ba10Ca2Mn2+TiSi10O30(OH)10 
Crystal System
Tetragonal 
Crystal Habit
Anhedral Grains 
Cleavage
Indistinct, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
orange, brown 
Streak
light orange 
Class
Tetragonal - Ditetragonal Dipyramidal 
Hardness
2.5 
Collection
Robert E. Walstrom collection
Special Info
Type Locality
Mineralpedia
View Muirite
On Dakota Matrix
Previously Sold Muirite
On Dakota Matrix
Other Available Muirite
WebMineral
View Muirite
Mindat
View Muirite
SOLD
Normandite - CL63235
Normandite - CL63235

Normandite

#CL63235
Locality
Mt. Kaskasnyunchorr, Khibiny Massif, Kola Peninsula, Russia 
Formula
NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF 
Availability
Sold
Size
4 x 3.5 x 3 cm - Miniature 

Radial groups of deep red Normandite to 3.5cm across.


Normandite

Formula
NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF 
Crystal System
Monoclinic 
Crystal Habit
Euhedral Crystals, Prismatic, Acicular 
Cleavage
Distinct, Distinct, None 
Luster
Vitreous - Adamantine 
Color
yellow, orange brown, orange 
Streak
pale yellowish white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
5-6 
Collection
Chet S. Lemanski, Jr. Collection

Perroudite

#KR61993
Locality
Cap Garonne mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France 
Formula
Ag4Hg5S5(I,Br)2Cl2 
Availability
Available
Price
$100.00
Size
1 x 1.1 x 1 cm - Thumbnail 
Tagged
silver  
Special Info
Type Locality 

Two minute 1mm pockets filled with rare, acicular crystals of Perroudite.


Perroudite

Formula
Ag4Hg5S5(I,Br)2Cl2 
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Aggregates, Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous - Adamantine 
Color
light red 
Streak
orange red 
Class
Orthorhombic - Disphenoidal 
Fracture
Brittle - Irregular 
Hardness
Collection
Kenneth Raabe Collection
Special Info
Type Locality

Sperrylite

#BAC63246
Locality
Sudbury dist., Ontario, Canada 
Formula
PtAs2 
Availability
Available
Price
$50.00
Size
1.5 x 1 x 0.6 cm - Thumbnail 

A partial silvery crystal to 2mm.


Sperrylite

Formula
PtAs2 
Crystal System
Isometric 
Crystal Habit
Disseminated, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
tin white 
Streak
black 
Class
Isometric - Diploidal 
Fracture
Conchoidal 
Hardness
6-7 
Collection
William & Anne Cook Collection

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