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0 item @ $0.00  

Mixed Minerals

Sunday, 20 November 2022 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including sonoraite, sphalerite, spionkopite, stillwellite-(ce), thortveitite, and zippeite and more from places like Toughnut mine, Tombstone, Cochise Co., Arizona, United States, Lengenbach quarry, Binn Valley, Wallis, Switzerland, Yarrow Creek-Spionkop Creek deposit, Alberta, Canada, Mary Kathleen mine, Cloncurry Shire, Queensland, Tuftane quarry, Frikstad, Iveland, Aust-Agder, Norway, and Apex mine, Lander Co., Nevada, United States.

Sonoraite

#59699
Locality
Toughnut mine, Tombstone, Cochise Co., Arizona, United States 
Formula
Fe3+Te4+O3(OH)·H2
Availability
Sold
Size
1.5 x 0.6 x 0.7 cm - Thumbnail 
Tagged
tellurium  

Yellow flakes of Sonoraite on one side and Chloragyrite on the other side.


Sonoraite

Formula
Fe3+Te4+O3(OH)·H2
Crystal System
Monoclinic 
Crystal Habit
Platy, Striated 
Luster
Vitreous (Glassy) 
Color
yellow green 
Class
Monoclinic - Prismatic 
Hardness

Sphalerite

with Realgar - #AH59691
Locality
Lengenbach quarry, Binn Valley, Wallis, Switzerland 
Formula
ZnS 
Availability
Sold
Size
6 x 4.5 x 2.5 cm - Sm Cabinet 

Yellowish green euhedral crystal of Sphalerite to 3mm with a bright red crystal of Realgar and a waterclear Calcite crystal in a 2.5cm vug.


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

Spionkopite

#BW59763
Locality
Yarrow Creek-Spionkop Creek deposit, Alberta, Canada 
Formula
Cu1.32
Availability
Sold
Size
3.2 x 2.6 x 2 cm - Miniature 
Tagged
sulfide , copper  

Rich mass of silvery-blue metallic crystal grains.


Spionkopite

Formula
Cu1.32
Crystal System
Trigonal 
Crystal Habit
Tarnishes 
Luster
Metallic 
Color
black, blue 
Class
Trigonal - Ditrigonal Pyramidal 
Hardness
2.5-3 
Collection
Bill Wilson Collection
SOLD
Stillwellite-(Ce) - RS59756
Stillwellite-(Ce) - RS59756

Stillwellite-(Ce)

#RS59756
Locality
Mary Kathleen mine, Cloncurry Shire, Queensland 
Formula
CeBSiO5 
Availability
Sold
Size
3 x 2.3 x 2 cm - Thumbnail 
Tagged
REE mineral  

Massive, dark brownish red, greasy luster Stillwellite, a rare earth mineral. The original label for this specimen states that it is from Mt. Isa, which is east of the actual locality (Mary Kathleen mine). This is the type locality.


Stillwellite-(Ce)

Formula
CeBSiO5 
Crystal System
Trigonal 
Crystal Habit
Rhombohedral Crystals, Massive 
Cleavage
Imperfect, None, None 
Luster
Resinous 
Color
red brown, pale pink 
Streak
white 
Class
Trigonal - Pyramidal 
Fracture
Conchoidal 
Hardness
6.5 
Collection
RC Stamberg Collection

Thortveitite

#RS59757
Locality
Tuftane quarry, Frikstad, Iveland, Aust-Agder, Norway 
Formula
Sc2Si2O7 
Availability
Sold
Size
5.5 x 2.5 x 2.2 cm - Sm Cabinet 

Prismatic crystals to 2mm with Davidite(?). There is a small 1mm Zircon crystal. Specimen needs better ID work. The Thortveitite is questionable. Previously was a Minerals Unlimited specimen.


Thortveitite

Formula
Sc2Si2O7 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine, Radial, Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous - Adamantine 
Color
brown, grayish black, black, grayish green 
Streak
gray 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
6.5 
Collection
RC Stamberg Collection

Zippeite

#59697
Locality
Apex mine, Lander Co., Nevada, United States 
Formula
K3(UO2)4(SO4)2O3(OH)·3H2
Availability
Sold
Size
2.5 x 2 x 1 cm - Thumbnail 

Rich mustard yellow pulverulent crystal groups to about 0.2mm and thick groups on both sides.


Zippeite

Formula
K3(UO2)4(SO4)2O3(OH)·3H2
Crystal System
Monoclinic 
Crystal Habit
Pulverulent, Encrustations 
Cleavage
Perfect, None, None 
Luster
Earthy (Dull) 
Color
yellow, golden yellow, orange red, reddish brown 
Streak
yellow white 
Class
Monoclinic - Prismatic 
Hardness
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