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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 baryte, calaverite, calcite, chalcopyrite, copper, and enargite and more from places like El Kwal, Mibladen, Khenifra Prov., Morocco, Ajax mine, Cripple Creek dist., Teller Co., Colorado, United States, Treasure Falls, Wolf Creek Pass, San Juan Mts, Mineral Co., Colorado, United States, Gold Prince mine, San Juan Co., Colorado, United States, Quincy mine, Houghton Co., Michigan, United States, and Longfellow mine, Red Mountain, San Juan Co., Colorado, United States.

Baryte

#AH51391
Locality
El Kwal, Mibladen, Khenifra Prov., Morocco 
Formula
BaSO4 
Availability
Available
Price
$135.00
Size
8 x 6 x 3.5 cm - Sm Cabinet 

Peach colored slender blades of Baryte with cubes of Galena crusted of with tiny Cerussite crystals. An eye-catching piece.


Baryte

Formula
BaSO4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Massive - Fibrous 
Cleavage
Perfect, Perfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, grayish white, brownish white, dark brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
3-3.5 
Collection
Arnold G Hampson Collection
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Calaverite

with Pyrite & Fluorite - #AH51413
Locality
Ajax mine, Cripple Creek dist., Teller Co., Colorado, United States 
Formula
AuTe2 
Availability
Sold
Size
9 x 4 x 5 cm - Sm Cabinet 
Tagged
tellurium , gold  

2-3mm striated thin to thicker tabular crystals of Calaverite with very good rich coverage associated with Fluorite. Very nice specimen.


Calaverite

Formula
AuTe2 
Crystal System
Monoclinic 
Crystal Habit
Striated, Massive, Crystalline - Fine 
Cleavage
None, None, None 
Luster
Metallic 
Color
yellow, yellowish white 
Streak
green 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
2.5 
Collection
Arnold G Hampson Collection

Calcite

var. iceland spar - #AH51407
Locality
Treasure Falls, Wolf Creek Pass, San Juan Mts, Mineral Co., Colorado, United States 
Formula
CaCO3 
Availability
Sold
Size
5.5 x 4 x 3 cm - Sm Cabinet 
Tagged
carbonate  

Treasure Falls has more to offer besides Calcite. But this Calcite I thought was fun since it is double refrectory as seen by the doubled Hampson name.


Calcite

Formula
CaCO3 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Stalactitic, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
colorless, white, pink, yellow, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
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On Dakota Matrix
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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

Copper

in and with Calcite - #AH51401
Locality
Quincy mine, Houghton Co., Michigan, United States 
Formula
Cu 
Availability
Available
Price
$325.00
Size
10 x 7 x 4 cm - Cabinet 
Tagged
native element  

Large specimen of Copper with a large pocket 4cm across with Calcite crystals some of contain 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
Arnold G Hampson Collection
Mineralpedia
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Enargite

#AH51394
Locality
Longfellow mine, Red Mountain, San Juan Co., Colorado, United States 
Formula
Cu3AsS4 
Availability
Sold
Size
10 x 7 x 5 cm - Cabinet 
Tagged
sulfide , copper  

It was tough to get good photos of the Enargite. They are highly reflective with their mirror-like reflectivity. The crystals reach 6mm and there are several of them in a pocket 3.5cm wide. Very nice specimen. Collected by Arnold in 1959.


Enargite

Formula
Cu3AsS4 
Crystal System
Orthorhombic 
Crystal Habit
Euhedral Crystals, Massive - Granular, Prismatic 
Cleavage
Perfect, Distinct, Distinct 
Luster
Metallic 
Color
steel gray, blackish gray, violet black 
Streak
black 
Class
Orthorhombic - Pyramidal 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Enargite
On Dakota Matrix
Previously Sold Enargite
On Dakota Matrix
Other Available Enargite
WebMineral
View Enargite
Mindat
View Enargite

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