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0 item @ $0.00  

Rare Minerals

Friday, 23 June 2023 06:00 PM

Introducing the "Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including georgechaoite, and nadorite and more from places like Wind Mountain, Otero Co., New Mexico, United States, and Djebel Nador, Constantine prov., Algeria.

Georgechaoite

#BAC61843
Locality
Wind Mountain, Otero Co., New Mexico, United States 
Formula
KNaZrSi3O9·2H2
Availability
Available
Price
$150.00
Size
1 x 0.9 x 0.6 cm - Thumbnail 
Special Info
Type Locality 

White prismatic crystals to 5mm.


Georgechaoite

Formula
KNaZrSi3O9·2H2
Crystal System
Orthorhombic 
Cleavage
None, None, None 
Color
colorless, white 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Conchoidal 
Hardness
Collection
William & Anne Cook Collection
Special Info
Type Locality

Nadorite

#54701
Locality
Djebel Nador, Constantine prov., Algeria 
Formula
PbSb3+O2Cl 
Availability
Available
Price
$3,750.00
Size
7 x 5 x 3 cm - Sm Cabinet 
Special Info
Antique Specimen 

Smoky brown, translucent crystal plates measuring 7mm on edge. This is an antique specimen once in the collection of Emile Bertrand circa 1890's. Betrand was an early pioneer in the study of optical mineralogy and introduced the "Betrand" lens to the petrology microscope. He was one of the founders of the French Mineralogy Society and went to school at the Paris School of Mines. Please see the Mineralogical Record label archive for more information (click here) . 

Betrand's label along with a few other labels are shown in the provenance tab.


Nadorite

Formula
PbSb3+O2Cl 
Crystal System
Orthorhombic 
Cleavage
Perfect, None, None 
Luster
Adamantine - Resinous 
Color
brown, brownish yellow, grayish brown, yellow 
Streak
yellow white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5-4 
Collection
Willard L. Roberts Collection
Special Info
Antique Specimen
Mineralpedia
View Nadorite
On Dakota Matrix
Previously Sold Nadorite
On Dakota Matrix
Other Available Nadorite
WebMineral
View Nadorite
Mindat
View Nadorite

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