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Rare Mineral Species

Friday, 18 March 2022 02:00 PM

Introducing the "Rare Mineral Species" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including fuloppite, rouaite, and truscottite and more from places like Artenberg quarry, Haslach im Kinzigtal, Freiburg, Baden-W�rttemberg, Germany, Jachymov, Erzgegirge, Bohemia, Czech Republic, and Ouaki road, Saint-Louis, Réunion, France.

Fuloppite

with Stibnite - #57684
Locality
Artenberg quarry, Haslach im Kinzigtal, Freiburg, Baden-W�rttemberg, Germany 
Formula
Pb3Sb8S15 
Availability
Available
Price
$35.00
Size
2.6 x 2.3 x 1.9 cm - Thumbnail 
Tagged
sulfide  

Tiny, less than 0.5mm silvery grains suspended in Quartz matrix. There are probably a dozen grains. There is also a 1mm vug lined with very tiny Stibnite crystals.


Fuloppite

Formula
Pb3Sb8S15 
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Luster
Metallic 
Color
gray, bronze yellow, steel blue 
Streak
reddish gray 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
2-2.5 

Rouaite

#57907
Locality
Jachymov, Erzgegirge, Bohemia, Czech Republic 
Formula
Cu2NO3(OH)3 
Availability
Available
Price
$235.00
Size
2.5 x 2 x 1.2 cm - Thumbnail 
Tagged
copper  

A rich specimen with sparkly green platey crystals to about 0.75mm. This is an extremely good specimen with coverage in an area of 2 x 1.5cm.


Rouaite

Formula
Cu2NO3(OH)3 
Crystal System
Monoclinic 
Crystal Habit
Euhedral Crystals, Aggregates, Equant Grains 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
dark emerald green 
Streak
green 
Class
Monoclinic - Sphenoidal 
Fracture
Splintery 
Hardness
Mineralpedia
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On Dakota Matrix
Previously Sold Rouaite
On Dakota Matrix
Other Available Rouaite
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Truscottite

#57708
Locality
Ouaki road, Saint-Louis, Réunion, France 
Formula
Ca14Si24O58(OH)8·2(H2O) 
Availability
Available
Price
$45.00
Size
2 x 2 x 1.6 cm - Thumbnail 

Very thin colorless plates with Mesolite(?).


Truscottite

Formula
Ca14Si24O58(OH)8·2(H2O) 
Crystal System
Trigonal 
Crystal Habit
Spherical, Micaceous, Aggregates 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
white 
Streak
white 
Class
Trigonal 
Hardness

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