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The Arnold Hampson Collection

Friday, 04 October 2019 07:00 PM

Introducing the "The Arnold Hampson Collection" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including cerussite, chalcopyrite, columbite-(fe), and copper and more from places like St.Louis mine, portal #4, Alta dist. Colorado, United States, Iron Clad mine, Rico dist. Dolores Co., Colorado, United States, Eagle mine, Gilman, Eagle Co., Colorado, United States, Gold Prince mine, San Juan Co., Colorado, United States, Newry Mica mine, Newry, Maine, United States, and Cashin mine, Montrose Co., Colorado, United States.

Cerussite

with Azurite - #AH51404
Locality
St.Louis mine, portal #4, Alta dist. Colorado, United States 
Formula
PbCO3 
Availability
Sold
Size
9 x 4 x 4.5 cm - Sm Cabinet 
Tagged
carbonate  

Little is known about this mine, other than information from a USGS Bulletin 1112-G "Geology and Mineral Deposits of the Area South of Telluride Colorado". The mine is located on Silver Mountain above 13,000 ft. It is in a group of other mines and is said to contain some of the most valuable deposits in the Telluride district.  The Alta-St. Louis property was intensively mined from 1909 to 1924.  

This specimen contains very nice, long, yellowish, acicular crystals to 9mm on a nice back drop of Azurite. It was collected by Arnold Hampson in 1963.


Cerussite

Formula
PbCO3 
Crystal System
Orthorhombic 
Crystal Habit
Reticulate, Massive - Granular, Crystalline - Coarse 
Cleavage
Distinct, Distinct, None 
Luster
Adamantine 
Color
colorless, white, gray, blue, green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3-3.5 
Collection
Arnold G Hampson Collection
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Chalcopyrite

with Pyrite - #AH51400
Locality
Iron Clad mine, Rico dist. Dolores Co., Colorado, United States 
Formula
Cu1+Fe3+S2 
Availability
Sold
Size
8 x 6 x 4 cm - Sm Cabinet 
Tagged
sulfide , copper  

A good representative specimen of ore from this mine. The Iron Clad mine was located on Expectation Mountain west of Rico. 


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 Fluorapatite - #AH51412
Locality
Eagle mine, Gilman, Eagle Co., Colorado, United States 
Formula
Cu1+Fe3+S2 
Availability
Sold
Size
5 x 4 x 1 cm - Miniature 
Tagged
sulfide , copper  

A splendid specimen of golden, striated crystals to 5mm with colorless tabular crystals of Fluorapatite to 4mm.


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 Pyroxmangite - #AH51388
Locality
Gold Prince mine, San Juan Co., Colorado, United States 
Formula
Cu1+Fe3+S2 
Availability
Sold
Size
10 x 6 x 6 cm - Cabinet 
Tagged
ore mineral , sulfide , copper  

A real handsome and colorful specimen of pink Pyroxmangite, formerly thought to be Rhodonite. The specimen is loaded with sulfides, namely Chalcopyrite and Galena. The area and trend otherwise known as the Sunnyside mine complex included a 11,000 ft tunnel which drained the water from all the surrounding mines. Unfortunately in 1978, it also drained Emma Lake. The Gold Prince mine is at the far north end of the trend. 


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

Columbite-(Fe)

#AH51395
Locality
Newry Mica mine, Newry, Maine, United States 
Formula
Fe2+Nb2O6 
Availability
Sold
Size
4.5 x 3 x 2 cm - Miniature 

Two divergent thick blades of Columbite from this well-known pegmatite. 


Columbite-(Fe)

Formula
Fe2+Nb2O6 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Striated 
Cleavage
Distinct, None, None 
Luster
Sub Metallic 
Color
black, brownish black 
Streak
blackish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
Collection
Arnold G Hampson Collection

Copper

#AH51424
Locality
Cashin mine, Montrose Co., Colorado, United States 
Formula
Cu 
Availability
Sold
Size
10 x 8.5 x 1.5 cm - Cabinet 

A nice thick plate of Copper probably with a bit of Silver with a great tarnished penny patina and smooth undulating form. The red areas are Cuprite.  Nice plate from a classic and somewhat off-beat Colorado Cu-Ag locale. Collected by Hampson on Dec. 26, 1960.


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
Arnold G Hampson Collection
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