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Ore Mineral Specimens 4

Tuesday, 29 September 2015 03:00 PM

Introducing the "Ore Mineral Specimens 4" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including silver, skutterudite, sphalerite, stannite, and tennantite and more from places like Creede, Mineral Co., Colorado, United States, Cobalt-Gowganda dist., Ontario, Canada, Potosi, Bolivia, Balmat, St. Lawrence Co., New York, United States, East Pool Mine, Illogan, Redruth, Cornwall, England, and Kellogg, Coeur d'Alene dist., Shoshone Co., Idaho, United States.

Silver

#PD34388
Locality
Creede, Mineral Co., Colorado, United States 
Formula
Ag 
Availability
Sold
Size
3.5 x 3.5 x 3 cm - Miniature 
Tagged
native element  

Good wire silver is an area of 6x6mm with a few other areas.


Silver

Formula
Ag 
Crystal System
Isometric 
Crystal Habit
Arborescent, Dendritic, Massive 
Cleavage
None, None, None 
Luster
Metallic 
Color
silver white, gray white, gray 
Streak
silver white 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
Phillips Collection
Mineralpedia
View Silver
On Dakota Matrix
Previously Sold Silver
On Dakota Matrix
Other Available Silver
WebMineral
View Silver
Mindat
View Silver

Skutterudite

with Erythrite - #PD42807
Locality
Cobalt-Gowganda dist., Ontario, Canada 
Formula
CoAs3-x 
Availability
Sold
Size
9.5 x 7 x 4.5 cm - Cabinet 
Tagged
sulfide  

A solid ore chunk of Skutterudite with alteration to pink and red erythrite masses.


Skutterudite

Formula
CoAs3-x 
Crystal System
Isometric 
Crystal Habit
Granular, Colloform, Massive 
Cleavage
Distinct, Distinct, None 
Luster
Metallic 
Color
white, light steel gray 
Streak
black 
Class
Isometric - Diploidal 
Fracture
Brittle 
Hardness
5.5-6 
Collection
Phillips Collection
SOLD
Sphalerite - PD33670
Sphalerite - PD33670

Sphalerite

with Galena and Limonite - #PD33670
Locality
Potosi, Bolivia 
Formula
ZnS 
Availability
Sold
Size
9 x 9 x 4 cm - Sm Cabinet 
Tagged
sulfide  

The specimen contains a thick 4cm vein of sulfide ore mainly Sphalerite and Galena.


Sphalerite

Formula
ZnS 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Granular, Colloform 
Cleavage
Perfect, Perfect, Perfect 
Luster
Resinous - Greasy 
Color
brown, yellow, red, green, black 
Streak
brownish white 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Phillips Collection
SOLD
Sphalerite - PD42810
Sphalerite - PD42810

Sphalerite

#PD42810
Locality
Balmat, St. Lawrence Co., New York, United States 
Formula
ZnS 
Availability
Sold
Size
15 x 14 x 5 cm - Cabinet 
Tagged
sulfide  

This is a heavy 5 pound/2.27kg chunk of Sphalerite. It is an impressive specimen of Sphalerite with good coarse crystals and resinous luster from a classic mineral locality. It will cost extra to ship.


Sphalerite

Formula
ZnS 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Granular, Colloform 
Cleavage
Perfect, Perfect, Perfect 
Luster
Resinous - Greasy 
Color
brown, yellow, red, green, black 
Streak
brownish white 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Phillips Collection

Stannite

with sulfides - #PD30938
Locality
East Pool Mine, Illogan, Redruth, Cornwall, England 
Formula
Cu2FeSnS4 
Availability
Sold
Size
6.5 x 4.5 x 4 cm - Sm Cabinet 
Tagged
copper , tin  

I have to go with what the label states on this specimen, which is simply Stannite. It is however hard to discern exactly what is the Stannite as there are several other sulfide minerals in the matrix. It is not a rich specimen. It comes with an older label.


Stannite

Formula
Cu2FeSnS4 
Crystal System
Tetragonal 
Crystal Habit
Massive - Granular, Crystalline - Fine 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
blue, grayish black, steel gray 
Streak
black 
Class
Tetragonal - Scalenohedral 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Phillips Collection
On Dakota Matrix
Previously Sold Stannite
On Dakota Matrix
Other Available Stannite
WebMineral
View Stannite
Mindat
View Stannite

Tennantite

with Galena - #PD36657
Locality
Kellogg, Coeur d'Alene dist., Shoshone Co., Idaho, United States 
Formula
Cu12As4S13 
Availability
Sold
Size
7.5 x 5.5 x 5 cm - Sm Cabinet 
Tagged
copper  
Special Info
EDS Confirmed 

A heavy chunk of granular Tennantite with Galena.


Tennantite

Formula
Cu12As4S13 
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Massive, Disseminated 
Cleavage
None, None, None 
Luster
Metallic 
Color
steel gray, black 
Streak
reddish gray 
Class
Isometric - Hextetrahedral 
Fracture
Hackly 
Hardness
3.5-4 
Collection
Phillips Collection
Special Info
EDS Confirmed

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