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Rare & Systematic

Friday, 08 March 2019 06:00 PM

Introducing the "Rare & Systematic" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including millerite, routhierite, and scorodite and more from places like Coed-Ely Colliery, Coed Ely, Rhondda-Cynon-Taff, Wales, Monte Arsiccio mine, Stazzema, Lucca, Tuscany, Italy, and Hemerdon Consols, Plympton, Tavistock dist., Devon, England.

Millerite

#50394
Locality
Coed-Ely Colliery, Coed Ely, Rhondda-Cynon-Taff, Wales 
Formula
NiS 
Availability
Available
Price
$95.00
Size
9 x 6.5 x 5 cm - Sm Cabinet 
Tagged
sulfide , nickel  

Slender crystals to 8mm in vug.


Millerite

Formula
NiS 
Crystal System
Trigonal 
Crystal Habit
Acicular, Massive 
Cleavage
Perfect, Perfect, None 
Luster
Metallic 
Color
bronze, greenish gray, gray, brass yellow 
Streak
greenish black 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Uneven 
Hardness
3-3.5 
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Routhierite

with Protochabourneite - #50439
Locality
Monte Arsiccio mine, Stazzema, Lucca, Tuscany, Italy 
Formula
CuTlHg2As2S6 
Availability
Available
Price
$95.00
Size
3 x 2 x 1 cm - Thumbnail 
Tagged
sulfide , copper  

Routhierite are the red grains. One grain is 2mm the other is 0.75mm. The Protochabourneite can be seen as black grains around the larger Routhierite. Both are very rare minerals, and this is type locality for Protochabourneite. From the stock of Dr. Jaroslav Hyrsl.


Routhierite

Formula
CuTlHg2As2S6 
Crystal System
Tetragonal 
Crystal Habit
Anhedral Grains 
Cleavage
Good, Good, None 
Luster
Metallic 
Color
violet red, black 
Class
Tetragonal - Ditetragonal Pyramidal 
Hardness
3.5 

Scorodite

#50404
Locality
Hemerdon Consols, Plympton, Tavistock dist., Devon, England 
Formula
Fe3+AsO4·2H2
Availability
Sold
Size
6.5 x 3.5 x 3 cm - Sm Cabinet 
Tagged
arsenate  

Pocket lined with exceptional blue Scorodite crystals to 2mm. The pocket is 2.5cm wide.


Scorodite

Formula
Fe3+AsO4·2H2
Crystal System
Orthorhombic 
Crystal Habit
Earthy, Granular, Fibrous 
Cleavage
Imperfect, Poor, Poor 
Luster
Vitreous - Greasy 
Color
yellowish green, pale leek green, liver brown, blue green, black green 
Streak
greenish white 
Class
Orthorhombic - Dipyramidal 
Fracture
Splintery 
Hardness
3.5-4 
Mineralpedia
View Scorodite
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Previously Sold Scorodite
On Dakota Matrix
Other Available Scorodite
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Mindat
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