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Mixed Minerals for Sale

Friday, 24 August 2018 07:00 PM

Introducing the "Mixed Minerals for Sale" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including afwillite, andorite, auricupride, gilmarite, gold, and selenium and more from places like Crestmore, Riverside Co., California, United States, San José mine, Oruro City, Oruro Dept., Bolivia, Karabash, Chelyabinsk Oblast', Urals, Russia, prospect near Rhyolite Pass, Mineral Co., Nevada, United States, Julcani mine, Julcani dist., Huancavelica dept., Peru, and Homestake mine, McKinley Co., New Mexico, United States.

Afwillite

#49651
Locality
Crestmore, Riverside Co., California, United States 
Formula
Ca3(SiO3)2(OH)2·2H2
Availability
Available
Price
$50.00
Size
5.5 x 3 x 2.5 cm - Sm Cabinet 

Colorless to white short prismatic and striated crystals free standing on matrix. Excellent specimen for locality, which is now defunct.


Afwillite

Formula
Ca3(SiO3)2(OH)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Massive, Prismatic 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous (Glassy) 
Color
colorless, white 
Streak
white 
Class
Monoclinic - Sphenoidal 
Hardness
Collection
Fred DeVito Collection

Andorite

#RW48733
Locality
San José mine, Oruro City, Oruro Dept., Bolivia 
Formula
AgPbSb3S6 
Availability
Sold
Size
3.5 x 2 x 0.7 cm - Miniature 
Tagged
sulfide , silver  

Andorite is a silver-lead-antimony sulfide. The IMA determined there were two distinct species of Andorite - an Andorite-IV and Andorite-VI. Both have similar chemistry but one is monoclinic and the other is orthorhombic. You would need XRD to distinguish the two. At any rate, this is shiny, deeply striated, and excellent specimen, but I cannot tell you which Andorite it is....sorry.


Andorite

Formula
PbAgSb3S6 
Crystal System
Orthorhombic 
Crystal Habit
Striated, Tabular 
Cleavage
None, None, None 
Luster
Metallic 
Color
grayish yellow, dark gray, steel gray 
Streak
black 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3-3.5 
Collection
Robert J. Waidler Collection
Mineralpedia
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Auricupride

in rhodingite rock - #RW49637
Locality
Karabash, Chelyabinsk Oblast', Urals, Russia 
Formula
Cu3Au 
Availability
Available
Price
$55.00
Size
3.5 x 4 x 2 cm - Miniature 

A singly brassy golden crystal grain of about 0.75mm in matrix. The specimen is sawed flat on both sides. Comes with a Russian label.


Auricupride

Formula
Cu3Au 
Crystal System
Isometric 
Crystal Habit
Platy, Anhedral grains, Ductile 
Cleavage
None, None, None 
Luster
Metallic 
Color
bronze, copper 
Streak
yellow 
Class
Isometric - Hexoctahedral 
Fracture
Malleable 
Hardness
2-3 
Collection
Robert J. Waidler Collection

Gilmarite

with Cornwallite - #49643
Locality
prospect near Rhyolite Pass, Mineral Co., Nevada, United States 
Formula
Cu2+3(AsO4)(OH)3 
Availability
Available
Price
$55.00
Size
2.5 x 2 x 1.5 cm - Thumbnail 
Tagged
arsenate , copper  
Special Info
XRD Confirmed 

A 2mm pit filled with 0.5mm crystals of micro bluish green Gilmarite and dark green Cornwallite. XRD confirmed,


Gilmarite

Formula
Cu2+3(AsO4)(OH)3 
Crystal System
Triclinic 
Crystal Habit
Rosette, Microscopic Crystals 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
greenish blue 
Streak
greenish blue 
Class
Triclinic - Pedial 
Fracture
Brittle - Irregular 
Hardness
Special Info
XRD Confirmed
Mineralpedia
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On Dakota Matrix
Previously Sold Gilmarite
On Dakota Matrix
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Gold

with Ferberite - #49670
Locality
Julcani mine, Julcani dist., Huancavelica dept., Peru 
Formula
Au 
Availability
Sold
Size
6.5 x 6 x 4 cm - Sm Cabinet 
Tagged
native element  

Wire Gold in vuggy Quartz to 5mm. There are three good wires and a few smaller, less than 1mm grains. The black is Ferberite.


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 
Mineralpedia
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Selenium

#RW49633
Locality
Homestake mine, McKinley Co., New Mexico, United States 
Formula
Se 
Availability
Sold
Size
5 x 4 x 2.5 cm - Miniature 
Tagged
native element  

Dark grey Selenium crystals compact in matrix.


Selenium

Formula
Se 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Granular, Disseminated 
Cleavage
Good, None, None 
Luster
Sub Metallic 
Color
gray, purple gray, reddish 
Streak
red 
Class
Trigonal - Trapezohedral 
Fracture
Flexible 
Hardness
Collection
Robert J. Waidler Collection
On Dakota Matrix
Previously Sold Selenium
On Dakota Matrix
Other Available Selenium
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Mindat
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