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Ore Minerals 6

Friday, 25 January 2019 05:00 PM

A wide array of excellent, rich, and large ore minerals from classical mining districts the world over will be presented.

Skutterudite

with Silver - #RW50113
Locality
Langis mine, Cobalt dist., Ontario, Canada 
Formula
CoAs3-x 
Availability
Sold
Size
10 x 8 x 2 cm - Cabinet 
Tagged
ore mineral , sulfide  

A slabbed speimen of predominately massive Skutterdite and minor veins of Silver.


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
Robert J. Waidler Collection

Skutterudite

with Bismuth - #DP50161
Locality
Lawson mine, Coleman Twp., Cobalt-Gowganda, Ontario, Canada 
Formula
CoAs3-x 
Availability
Sold
Size
6 x 5 x 6 cm - Sm Cabinet 
Tagged
ore mineral , sulfide  

A solid chunk of dull silvery Skutterudite with minor brassy Bismuth and alterations to Erythrite (red).


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
Don Phillips Collection

Sphalerite

with Quartz - #RW50124
Locality
Huaron mine, Huayllay, Pasco dept., Peru 
Formula
ZnS 
Availability
Available
Price
$40.00
Size
7 x 5 x 5 cm - Sm Cabinet 
Tagged
ore mineral , sulfide  

Black highly lustrous crystals od Sphalerite to over 1cm and associated with needle Quartz. Sphalerite is a primary ore of zinc, but sometimes will contain up to 26% iron and small amounts of Cadmium.


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
Robert J. Waidler Collection
SOLD
Spodumene - RW50118
Spodumene - RW50118

Spodumene

#RW50118
Locality
Harding mine, Taos Co., New Mexico, United States 
Formula
LiAlSi2O6 
Availability
Sold
Size
13 x 7 x 3 cm - Cabinet 
Tagged
ore mineral , pegmatite mineral , lithium  

A large cleaved crystal of Spodumene, an important or of lithium, found chiefly in fractionated pegmatites. The Harding mine was known for large masses of Spodumene. It was a primary ore of lithium along with a host of other lithium minerals from pegmatities. In recent years lithium has been extracted from low grade lithium salt basins in Nevada.


Spodumene

Formula
LiAlSi2O6 
Crystal System
Monoclinic 
Crystal Habit
Bladed, Prismatic 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
grayish white, pink, violet, emerald green, yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Splintery 
Hardness
6.5-7 
Collection
Robert J. Waidler Collection
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Stromeyerite

with Calcite in diabase - #RW50114
Locality
Siscoe mine, Nicol Twp., Cobalt-Gowganda, Ontario, Canada 
Formula
CuAgS 
Availability
Sold
Size
11 x 9.5 x 3.5 cm - Cabinet 
Tagged
ore mineral , sulfide , copper , silver  

Stromeyerite is an important ore of both copper and silver. The Stromeyerite in this specimen is disseminated throughout the mass and 1mm blackish grains and one 1.3cm grain tarnished a dark blue. It is in Diabase with Calcite and minor Chalcopyrite.


Stromeyerite

Formula
CuAgS 
Crystal System
Orthorhombic 
Crystal Habit
Granular, Massive, Pseudo Hexagonal 
Cleavage
None, None, None 
Luster
Metallic 
Color
blue gray, dark blue, dark steel gray, steel gray 
Streak
steel gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection

Tetrahedrite

with Pyrite - #49113
Locality
Black Pine mine, Philipsburg, Granite Co., Montana, United States 
Formula
Cu12Sb4S13 
Availability
Sold
Size
16 x 13 x 6 cm - Cabinet 
Tagged
ore mineral , sulfide , copper  

A large cabinet, heavy specimen of nearly 95% Tetrahedrite.


Tetrahedrite

Formula
Cu12Sb4S13 
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Massive 
Cleavage
None, None, None 
Luster
Metallic 
Color
iron gray, black, steel gray 
Streak
black 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Chris van Laer Collection

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