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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 ferberite, galena, gold, greenockite, and guettardite and more from places like Fourth of July mine, Gilpin Co., Colorado, United States, Mountain Springs mine, Rico dist., Dolores Co., Colorado, United States, Bessie G mine, La Plata Co., Colorado, United States, American Tunnel, Silverton, San Juan Co., Colorado, United States, San Juan Vein, Patch mine, Gilpin Co., Colorado, United States, and Brobdignag mine, Red Mtn. dist., San Juan Co., Colorado, United States.

SOLD

Ferberite

on Quartz - #AH53361

Details
Data
Provenance
Resources

Locality: Fourth of July mine, Gilpin Co., Colorado, United States
Formula: Fe²⁺WO₄
Availability: Sold
Size: 9 x 7 x 3 cm - Sm Cabinet

Doesn't look like much of a specimen. You really have to get this under the scope to appreciate it. The Ferberite form euhedral crystals to about 1mm. They are prismatic with rectangular, flat terminations. Most have paralleled crystals on the sides and some are splayed outward, while others are somewhat curved or bent from the center of the prism. All the white is a cover of tiny Quartz crystals.

Ferberite

Formula: Fe²⁺WO₄
Crystal System: Monoclinic
Crystal Habit: Prismatic, Lamellar, Massive - Granular
Cleavage: Perfect, Parting, Parting
Luster: Sub Metallic
Color: black
Streak: brownish black
Class: Monoclinic - Prismatic
Fracture: Brittle - Uneven
Hardness: 4.5

Collection: Arnold G Hampson Collection

Mineralpedia: View Ferberite
On Dakota Matrix: Previously Sold Ferberite
On Dakota Matrix: Other Available Ferberite
WebMineral: View Ferberite
Mindat: View Ferberite

SOLD

Galena

#AH53362

Details
Data
Provenance
Resources

Locality: Mountain Springs mine, Rico dist., Dolores Co., Colorado, United States
Formula: PbS
Availability: Sold
Size: 8.5 x 5.5 x 6 cm - Sm Cabinet
Tagged: sulfide

Large specimen of Galena. The specimen has interesting zones with oriented faces reflecting the light in the same direction. I don't know what causes this, perhaps pressure during formations, perhaps I am just seeing things.

Galena

Formula: PbS
Crystal System: Isometric
Crystal Habit: Euhedral Crystals, Massive - Granular, Massive
Cleavage: Perfect, Perfect, Perfect
Luster: Metallic
Color: light lead gray, dark lead gray
Streak: grayish black
Class: Isometric - Hexoctahedral
Fracture: Brittle
Hardness: 2.5

Mineralpedia: View Galena
On Dakota Matrix: Previously Sold Galena
On Dakota Matrix: Other Available Galena
WebMineral: View Galena
Mindat: View Galena

SOLD

Gold

with Coloradoite & Krennerite - #AH53365

Details
Data
Provenance
Resources

Locality: Bessie G mine, La Plata Co., Colorado, United States
Formula: Au
Availability: Sold
Size: 8 x 8 x 4.5 cm - Sm Cabinet
Tagged: native element

Fabulous specimen with a good amount of Gold intimately associated with silvery Coloradoite. Some of the Gold shows wire development. There are three spots which show prismatic crystals of Krennerite. These have slightly different goldish color in the right light, and they also exhibit cleavage. Coloradoite does not have cleavage.

Gold

Formula: Au
Crystal System: Isometric
Crystal Habit: Arborescent, Platy, Granular
Cleavage: None, None, None
Luster: Metallic
Color: yellow, pale yellow, orange, yellow white, reddish white
Streak: yellow
Class: Isometric - Hexoctahedral
Fracture: Hackly
Hardness: 2.5-3

Collection: Arnold G Hampson Collection

Mineralpedia: View Goldmanite
On Dakota Matrix: Previously Sold Gold
On Dakota Matrix: Other Available Gold
WebMineral: View Gold
Mindat: View Gold

SOLD

Gold

in Quartz - #AH53377

Details
Data
Provenance
Resources

Locality: American Tunnel, Silverton, San Juan Co., Colorado, United States
Formula: Au
Availability: Sold
Size: 4 x 4 x 3.5 cm - Miniature
Tagged: native element

Vein Gold in a 10x8mm area within Quartz with spotty showings across the rest of the specimen with Galena and Sphalerite. Obtained in 1976 by Hampson.

The American Tunnel was dirven in 1959 to intersect the Sunnyside mine orebodies. The tunnel originated at the lower levels of the Gold King mine about a mile away. The complex is located about seven miles northeat of Silverton at over 12,000ft. It is best known for its Fluorite on Rhodochrosite groups.

Gold

Formula: Au
Crystal System: Isometric
Crystal Habit: Arborescent, Platy, Granular
Cleavage: None, None, None
Luster: Metallic
Color: yellow, pale yellow, orange, yellow white, reddish white
Streak: yellow
Class: Isometric - Hexoctahedral
Fracture: Hackly
Hardness: 2.5-3

Collection: Arnold G Hampson Collection

Mineralpedia: View Goldmanite
On Dakota Matrix: Previously Sold Gold
On Dakota Matrix: Other Available Gold
WebMineral: View Gold
Mindat: View Gold

SOLD

Greenockite

on Sphalerite - #AH53385

Details
Data
Provenance
Resources

Locality: San Juan Vein, Patch mine, Gilpin Co., Colorado, United States
Formula: CdS
Availability: Sold
Size: 4.5 x 4.5 x 2.5 cm - Miniature
Tagged: sulfide

The more I look at this specimen the more I am impressed. If you are like me and enjoy the studying the paragenesis of the mineralogy, you will thoroughly enjoy this piece. The color of the Greenockite sets it apart from the rest of the minerals. It is a coating on the surface of the Sphalerite crystals which are black and superb to 3mm. In the open spaces, waterclear Quartz formed at the center and along the outer edges of the vein.

There are only a handful of reported Greenockite in Colorado. This specimen carries a Red Mountain Exploration tag.

Greenockite

Formula: CdS
Crystal System: Hexagonal
Crystal Habit: Radial, Encrustations, Colloform
Cleavage: Distinct, Imperfect, None
Luster: Adamantine - Resinous
Color: honey yellow, citron yellow, orange yellow
Streak: orange yellow
Class: Hexagonal - Dihexagonal Pyramidal
Fracture: Uneven
Hardness: 3.5-4

Collection: Arnold G Hampson Collection

Mineralpedia: View Greenockite
On Dakota Matrix: Previously Sold Greenockite
On Dakota Matrix: Other Available Greenockite
WebMineral: View Greenockite
Mindat: View Greenockite

SOLD

Guettardite

#AH53369

Details
Data
Provenance
Resources

Locality: Brobdignag mine, Red Mtn. dist., San Juan Co., Colorado, United States
Formula: Pb(Sb,As)₂S₄
Availability: Sold
Size: 9 x 5 x 6 cm - Sm Cabinet
Tagged: sulfide

An impressive chunk of this rare sulfosalt. It is massive and has a very strange luster for a metallic mineral. Collected in 1977 by Hampson. The mine is at 14,000ft.

Guettardite

Formula: Pb(Sb,As)₂S₄
Crystal System: Monoclinic
Crystal Habit: Acicular, Anhedral Grains
Cleavage: Perfect, None, None
Luster: Metallic
Color: grayish black
Streak: brownish
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 4

Collection: Arnold G Hampson Collection

On Dakota Matrix: Previously Sold Guettardite
On Dakota Matrix: Other Available Guettardite
WebMineral: View Guettardite
Mindat: View Guettardite

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Hampson Colorado Minerals