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0 item @ $0.00  

Ore Minerals, part 1

Thursday, 13 July 2023 06:00 PM

A wide array of excellent, rich, and large ore minerals from classical mining districts.

Chalcopyrite

with Pyrite & Galena - #AH58880
Locality
Van Winkle mine, Rico Mtns., Dolores Co., Colorado, United States  
Formula
Cu1+Fe3+S2 
Availability
Sold
Size
7.5 x 6 x 4.5 cm - Sm Cabinet 
Tagged
ore mineral , sulfide , copper  

A rich specimen loaded with golden Chalcopyrite and Galena. It is a typical ore specimen fro this mine, which nobody has ever heard of.


Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 
Collection
Arnold G Hampson Collection

Chalcopyrite

with Galena - #AH58883
Locality
Holland mine, Patagonia dist., Santa Cruz Co., Arizona, United States 
Formula
Cu1+Fe3+S2 
Availability
Sold
Size
9.5 x 4 x 5 cm - Cabinet 
Tagged
ore mineral , sulfide , copper  

Here is another specimen collected by the late Arnold Hampson. This guy was incredible and collected throughout the East coast, Midwest and Western States. Take a minute and read about Hampson's life of mineral collecting here. This specimen was collected on his western States tour is a nice ore mineral from the little known Holland mine in Arizona. Some of the areas on this specimen show a light green fibers of Tremolite (or other amphibole) indicating a total flood of sulfides engulfing the country rock in which it mineralized.

The Chalcopyrite is the typical golden color distinguishing it from Pyrite. Most of the matrix however is Galena.


Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 
Collection
Arnold G Hampson Collection

Chalcopyrite

with Pyrite - #AH62049
Locality
Little Dora mine, San Juan Co., Colorado, United States 
Formula
Cu1+Fe3+S2 
Availability
Available
Price
$30.00
Size
5 x 5 x 3.5 cm - Miniature 
Tagged
ore mineral , sulfide , copper  

Gold colored and iridescent Chalcopyrite with a little Galena and Quartz.


Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 
Collection
Arnold G Hampson Collection
SOLD
Chalcopyrite - DL62077
Chalcopyrite - DL62077

Chalcopyrite

#DL62077
Locality
Magma mine, Pinal Co., Arizona, United States 
Formula
Cu1+Fe3+S2 
Availability
Sold
Size
7.5 x 6 x 2.5 cm - Sm Cabinet 
Tagged
ore mineral , sulfide , copper  

Bronze colored fine mass of Chalcopyrite displaying iridescence. 


Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 
Collection
Dr. David London Collection
SOLD
Chromite - 62055
Chromite - 62055

Chromite

#62055
Locality
Manila Bay, Philippines 
Formula
Fe2+Cr2O4 
Availability
Sold
Size
4 x 3 x 2 cm - Miniature 
Tagged
ore mineral  

Black anhedral grains of Chromite to 2mm. Chromium crystals are very rare. Chromium is a silvery white extremely hard metal Moh's - 9, while Chromite has a hardness of 5.5. It is used in the metallurgical industry to enhance hardness and resistance to corrosion.


Chromite

Formula
Fe2+Cr2O4 
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Granular, Nuggets 
Cleavage
None, None, None 
Luster
Metallic 
Color
black, brownish black 
Streak
brown 
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
5.5 
Collection
RC Stamberg Collection
Mineralpedia
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Copper

with Cuprite - #RW62082
Locality
Morenci mine, Greenlee Co., Arizona, United States 
Formula
Cu 
Availability
Sold
Size
10 x 7 x 7 cm - Cabinet 
Tagged
ore mineral , native element  

This specimen can be described as typical rich copper ore. The veins are 3 to 4cm thick with Chrysocolla. Most of what you can see in the photos is Cuprite with areas red chalcotrichite, a variety of Cuprite. In the second photo, you can easily see native Copper. 


Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection
Mineralpedia
View Copper
On Dakota Matrix
Previously Sold Copper
On Dakota Matrix
Other Available Copper
WebMineral
View Copper
Mindat
View Copper

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