mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
0 item @ $0.00  

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 pyrite, pyroxmangite, quartz, rhodochrosite and more from places like Black Cloud mine, Leadville, Lake Co., Colorado, United States, Sunnyside mine, Silverton, San Juan Co., Colorado, United States, Homestake mine, Creede, Mineral Co., Colorado, United States, Commodore mine, Creede dist., Mineral Co., Colorado, United States, American Tunnel, Silverton, San Juan Co., Colorado, United States.

Pyrite

#AH53394
Locality
Black Cloud mine, Leadville, Lake Co., Colorado, United States 
Formula
FeS2 
Availability
Sold
Size
4 x 4.5 x 3.5 cm - Miniature 
Tagged
sulfide  

Flashy, deeply striated Pyrite crystal with good luster and golden color. Some of the edges are worn.


Pyrite

Formula
FeS2 
Crystal System
Isometric 
Crystal Habit
Striated, Druse, Stalactitic 
Cleavage
Poor, Poor, None 
Luster
Metallic 
Color
pale brass yellow 
Streak
greenish black 
Class
Isometric - Diploidal 
Fracture
Conchoidal 
Hardness
6.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Pyrite
On Dakota Matrix
Previously Sold Pyrite
On Dakota Matrix
Other Available Pyrite
WebMineral
View Pyrite
Mindat
View Pyrite

Pyroxmangite

with Sphalerite - #AH53373
Locality
Sunnyside mine, Silverton, San Juan Co., Colorado, United States 
Formula
Mn2+SiO3 
Availability
Sold
Size
4 x 4 x 3 cm - Miniature 

Excellent specimen for micro mineralogy. The Pyroxmangite occurs as superb, pink, bladed crystals to 2mm. With it are exceptional crystals of green Sphalerite to 3mm. Amongst these crystals are white sprays of what I believe are Calcite clusters, brown rounded Rhodochrosite groups and waterclear Quartz crystals.

Tons of massive pink Pyroxmangite was once collected on the dumps. It was originally thought to be Rhodonite but later redefined as Pyroxmangite. Crystals such as these are rare from the Sunnyside. Given the quality of crystals on this specimen, it is doubtful it came from the dump. It was originally from the Fred Bird collection, which Hampson obtained.

The Sunnyside mine is one of Colorado's most famous, and infamous mines. In 1978, the upper workings directly below Lake Emma collapsed sending four million tons of mud through the mine. Fortunately the mine was idle that day and no one was killed. It took two years to clean out the muck.


Pyroxmangite

Formula
Mn2+SiO3 
Crystal System
Triclinic 
Crystal Habit
Massive, Massive - Granular 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous - Pearly 
Color
pink, rose pink, purplish pink, yellowish red brown, brown 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
5.5-6 
Collection
Arnold G Hampson Collection

Quartz

var. amethyst - #AH53383
Locality
Homestake mine, Creede, Mineral Co., Colorado, United States 
Formula
SiO2 
Availability
Sold
Size
10.5 x 7 x 5 cm - Cabinet 

Nice cluster of frosted amethyst with crystals to 8mm. Hampson gives the locality as "Homestake mine" of the Creede district.  I find no reports of a Homesake mine in Creede district. It is associated with platy Baryte on the backside, this may provide a clue to the localtiy.


Quartz

Formula
SiO2 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Druse, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, violet, gray, yellow 
Streak
white 
Class
Trigonal - Trapezohedral 
Fracture
Conchoidal 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Quartz
On Dakota Matrix
Previously Sold Quartz
On Dakota Matrix
Other Available Quartz
WebMineral
View Quartz
Mindat
View Quartz

Quartz

var. amethyst with Galena & Sphalerite - #AH53407
Locality
Commodore mine, Creede dist., Mineral Co., Colorado, United States 
Formula
SiO2 
Availability
Sold
Size
19.5 x 8.5 x 6 cm - Cabinet 

Large cabinet specimen of deep purple amethyst crystals covering Galena and Sphalerite.


Quartz

Formula
SiO2 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Druse, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, violet, gray, yellow 
Streak
white 
Class
Trigonal - Trapezohedral 
Fracture
Conchoidal 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
View Quartz
On Dakota Matrix
Previously Sold Quartz
On Dakota Matrix
Other Available Quartz
WebMineral
View Quartz
Mindat
View Quartz

Rhodochrosite

#AH53366
Locality
American Tunnel, Silverton, San Juan Co., Colorado, United States 
Formula
MnCO3 
Availability
Sold
Size
8.5 x 5 x 5 cm - Sm Cabinet 
Tagged
carbonate  

Great coverage of pink rhombic crystals of Rhodochrosite to 5mm covering Quartz.  It's a lighter pink than the photos show.


Rhodochrosite

Formula
MnCO3 
Crystal System
Trigonal 
Crystal Habit
Massive - Granular, Columnar, Botryoidal 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
pinkish red, red, rose red, yellowish gray, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Arnold G Hampson Collection

Rhodochrosite

with Quartz - #AH53384
Locality
American Tunnel, Silverton, San Juan Co., Colorado, United States 
Formula
MnCO3 
Availability
Sold
Size
4.5 x 2.5 x 2.5 cm - Miniature 
Tagged
carbonate  

Sweet specimen with pink rhombic crystals to 5mm with Quartz and sulfides. Obtained by Hampson in 1966.


Rhodochrosite

Formula
MnCO3 
Crystal System
Trigonal 
Crystal Habit
Massive - Granular, Columnar, Botryoidal 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
pinkish red, red, rose red, yellowish gray, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Arnold G Hampson Collection

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2020 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map