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Rare Minerals for Collectors

Sunday, 07 January 2024 06:00 PM

Introducing the "Rare Minerals for Collectors" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including carnotite, toyohaite, and uchucchacuaite and more from places like Anderson mine, Yavapai Co., Arizona, United States, Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina, and Uchucchacua mine, Oyon prov., Lima dept., Peru.

Carnotite

with Weeksite - #BAC63116
Locality
Anderson mine, Yavapai Co., Arizona, United States 
Formula
K2(UO2)2(VO4)2·3H2
Availability
Available
Price
$75.00
Size
5.5 x 4.5 x 2.5 cm - Sm Cabinet 
Tagged
vanadium  
Special Info
Radioactive!! 

Orange-yellow crystals of Carnotite with yellow crystals of Weeksite in groups with radial cross-sections. 


Carnotite

Formula
K2(UO2)2(VO4)2·3H2
Crystal System
Monoclinic 
Crystal Habit
Earthy, Encrustations, Platy 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
yellow, golden yellow, greenish yellow 
Streak
light yellow 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
William & Anne Cook Collection
Special Info
Radioactive!!

Toyohaite

with Pirquitasite & Franckeite - #KR62778
Locality
Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina 
Formula
Ag2FeSn3S8 
Availability
Available
Price
$750.00
Size
4 x 3 x 3 cm - Miniature 
Tagged
sulfide , tin , silver  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Ex. Dr Werner Paar specimen with microscopic Toyohaite crystals not seen with the naked eye in Franckeite and Cylindrite matrix.  Toyohaite is an extremely rare silver-tin sulfide. On the backside is a 1mm tetragonal Pirquitasite crystal much like the one photographed by Brent Thorne on Mindat click here.

Comes with the original Werner Paar label and also a Josef Vajdak label. See prov. tab.


Toyohaite

Formula
Ag2FeSn3S8 
Crystal System
Tetragonal 
Luster
Metallic 
Color
gray 
Class
Tetragonal - Dipyramidal 
Hardness
Collection
Kenneth Raabe Collection, Ex. Dr. Werner Paar Collection
Special Info
XRD Confirmed
Special Info
EDS Confirmed

Uchucchacuaite

#KR62782
Locality
Uchucchacua mine, Oyon prov., Lima dept., Peru 
Formula
AgMnPb3Sb5S12 
Availability
Available
Price
$275.00
Size
2 x 1.8 x 1 cm - Thumbnail 
Tagged
sulfide , silver  
Special Info
EDS Confirmed 

Granular silvery mass with a little Proustite.


Uchucchacuaite

Formula
AgMnPb3Sb5S12 
Crystal System
Orthorhombic 
Crystal Habit
Anhedral Grains, Twinning Common 
Luster
Metallic 
Color
lead gray 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5 
Collection
Kenneth Raabe Collection
Special Info
EDS Confirmed

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