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Hampson Colorado Minerals

Sunday, 31 May 2020 06:00 PM

Introducing the "Hampson Colorado Minerals" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including sphalerite, stibnite, tetrahedrite, topaz, zircon and more from places like Summit Co., Colorado, United States, Smuggler Almont, Dunton dist., Dolores Co., Colorado, United States, Little Dora mine, San Juan Co., Colorado, United States, Tarryall Mtns., Park Co., Colorado, United States, Helen Hunt Falls, El Paso Co., Colorado, United States, and St Peters Dome, El Paso Co., Colorado, United States.

Sphalerite

#AH53380
Locality
Summit Co., Colorado, United States 
Formula
ZnS 
Availability
Sold
Size
4 x 3.5 x 2 cm - Miniature 
Tagged
sulfide  

Not much for a specific locality, but is probably easily locatable as to what mine by any expert on Colorado minerals. It is sweet piece with a rich yellowish green color and excellent crystals to over 1cm. At the base the color changes to a deep amber yellow. Acquired by Hampson in 1942.


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
Arnold G Hampson Collection

Stibnite

#AH53372
Locality
Smuggler Almont, Dunton dist., Dolores Co., Colorado, United States 
Formula
Sb2S3 
Availability
Sold
Size
8 x 4.5 x 3.5 cm - Sm Cabinet 
Tagged
sulfide  

A 2cm vug with 1-4mm Stibnite crystals.  I haven't seen too many, if any, Stibnite specimens, let alone crystals, from Colorado. 


Stibnite

Formula
Sb2S3 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Striated, Granular 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
lead gray, bluish lead gray, steel gray, black 
Streak
blackish gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
Collection
Arnold G Hampson Collection
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Tetrahedrite

with Chalcopyrite - #AH53376
Locality
Little Dora mine, San Juan Co., Colorado, United States 
Formula
Cu12Sb4S13 
Availability
Sold
Size
7.5 x 4.5 x 4 cm - Sm Cabinet 
Tagged
sulfide , copper  

Massive colorful specimen of goldish and iridescent Chalcopyrite and grey massive Tetrahedrite. Collected in 1959 by Hampson.


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
Arnold G Hampson Collection

Topaz

#AH53391
Locality
Tarryall Mtns., Park Co., Colorado, United States 
Formula
Al2SiO4F2 
Availability
Sold
Size
3 x 3 x 2.5 cm - Thumbnail 

Faint green, gemmy, textbook Topaz crystal showing at least eight faces some with shallow striations. An interesting feature at the intersection of the two main faces is the serrated termination caused by micro striations on both of the faces. You can feel this when your fingernail is slid down the edge. This locality is probably the most well-known and collected area in Colordao for Topaz.


Topaz

Formula
Al2SiO4F2 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Coarse, Prismatic, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale blue, yellow, yellowish brown, red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
Collection
Arnold G Hampson Collection
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Zircon

#AH53398
Locality
Helen Hunt Falls, El Paso Co., Colorado, United States 
Formula
ZrSiO4 
Availability
Sold
Size
2 x 1.5 x 1 cm - Thumbnail 

Partial crystal with four faces.


Zircon

Formula
ZrSiO4 
Crystal System
Tetragonal 
Crystal Habit
Prismatic, Tabular, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Adamantine 
Color
brown, reddish brown, colorless, gray, green 
Streak
white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Uneven 
Hardness
7.5 
Collection
Arnold G Hampson Collection
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Zircon

#AH53403
Locality
St Peters Dome, El Paso Co., Colorado, United States 
Formula
ZrSiO4 
Availability
Sold
Size
3.5 x 2 x 2 cm - Miniature 

A cluster of Zircon crystals to 3mm.


Zircon

Formula
ZrSiO4 
Crystal System
Tetragonal 
Crystal Habit
Prismatic, Tabular, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Adamantine 
Color
brown, reddish brown, colorless, gray, green 
Streak
white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Uneven 
Hardness
7.5 
Collection
Arnold G Hampson Collection
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