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Recently Released New Additions

Rare Minerals

Wednesday, 01 January 2025 06:00 PM

Introducing the "Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including bismutite, and franckeite and more from places like Schmiedestollen, Wittichen, Baden-Württemberg, Germany, and Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina.

Bismutite - JD65243
Bismutite - JD65243

Bismutite

#JD65243
Locality
Schmiedestollen, Wittichen, Baden-Württemberg, Germany 
Formula
Bi2O2(CO3) 
Availability
Available
Price
$30.00
Size
2 x 2 x 1.5 cm - Thumbnail 
Tagged
carbonate  

Yellow bead-like crystals grown on spindly Quartz.


Bismutite

Formula
Bi2O2(CO3) 
Crystal System
Orthorhombic 
Crystal Habit
Fibrous, Earthy 
Cleavage
Distinct, None, None 
Luster
Vitreous - Pearly 
Color
brown, brownish yellow, green, gray, yellow 
Streak
gray 
Class
Orthorhombic - Pyramidal 
Hardness
4 
Collection
John Dagenais Collection
On Dakota Matrix
Previously Sold Bismutite
On Dakota Matrix
Other Available Bismutite
WebMineral
View Bismutite
Mindat
View Bismutite
Franckeite - BAC65187
Franckeite - BAC65187

Franckeite

(arsenian) - #BAC65187
Locality
Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina 
Formula
Fe2+(Pb,Sn2+)6Sn4+2Sb3+2S14 
Availability
Available
Price
$35.00
Size
2.2 x 1 x 0.8 cm - Thumbnail 
Tagged
sulfide , tin  

Very fine granular Franckeite. 


Franckeite

Formula
Fe2+(Pb,Sn2+)6Sn4+2Sb3+2S14 
Crystal System
Triclinic 
Crystal Habit
Tabular, Massive - Fibrous, Radial 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
grayish black, blackish gray 
Streak
grayish black 
Class
Triclinic - Pinacoidal 
Fracture
Flexible 
Hardness
2.5 
Collection
William & Anne Cook Collection
Mineralpedia
View Franckeite
On Dakota Matrix
Previously Sold Franckeite
On Dakota Matrix
Other Available Franckeite
WebMineral
View Franckeite
Mindat
View Franckeite

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