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0 item @ $0.00  

Sale Minerals

Sunday, 30 August 2020 06:00 PM

Introducing the "Sale Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including crichtonite, epidote, giniite, gustavite, quartz, and rhodochrosite and more from places like Presidente Kubitschek, Minas Gerais, Brazil, Alchuri, Shigar Valley, Balistan, Northern Areas, Pakistan, Sandamap pegmatite, Dâures, Erongo, Namibia, South Mountain dist., Owyhee Co., Idaho, United States, Los Arcoiris, Ojo Laguna, Chihuahua, Mexico, and American Tunnel, Silverton, San Juan Co., Colorado, United States.

SOLD
Crichtonite - PD33752
Crichtonite - PD33752

Crichtonite

on Quartz - #PD33752
Locality
Presidente Kubitschek, Minas Gerais, Brazil 
Formula
Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 
Availability
Sold
Size
2 x 2 x 1.5 cm - Thumbnail 

Black formless crystal grain to 1.5mm, on Quartz crystal. Lurking about is also golden Rutile crystals. Crichtonite is a fairly rare titanium mineral with several other (possible) elements as shown above in the formula. 


Crichtonite

Formula
Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 
Crystal System
Trigonal 
Crystal Habit
Rhombohedral Crystals 
Luster
Metallic - Dull 
Color
black 
Streak
dark gray 
Class
Trigonal - Rhombohedral 
Hardness
5-6 

Epidote

#AH53630
Locality
Alchuri, Shigar Valley, Balistan, Northern Areas, Pakistan 
Formula
Ca2Fe3+Al2(Si2O7)(SiO4)O(OH) 
Availability
Available
Price
$10.00
Reduced Price
$5.00
Size
1.9 x 1.5 x 0.4 cm - Thumbnail 

Small, olive green bladed Epidote crystals in thin cluster. 


Epidote

Formula
Ca2Fe3+Al2(Si2O7)(SiO4)O(OH) 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Fibrous, Massive 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
yellowish green, brownish green, black, yellow, gray 
Streak
grayish white 
Class
Monoclinic - Prismatic 
Fracture
Regular 
Hardness
Collection
Arnold G Hampson Collection
Mineralpedia
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Previously Sold Epidote
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Giniite

#51096
Locality
Sandamap pegmatite, Dâures, Erongo, Namibia 
Formula
Fe2+Fe3+4(PO4)4(OH)2·2H2
Availability
Available
Price
$95.00
Reduced Price
$50.00
Size
Micromount 
Tagged
phosphate , pegmatite mineral  
Special Info
Type Locality 

A micromount with a 1cm specimen showing crystalline black grains of which is the Giniite. Very Rare


Giniite

Formula
Fe2+Fe3+4(PO4)4(OH)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine 
Cleavage
None, None, None 
Luster
Vitreous - Greasy 
Color
blackish brown, black, blackish green 
Streak
olive green 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
3-4 
Special Info
Type Locality
On Dakota Matrix
Previously Sold Giniite
On Dakota Matrix
Other Available Giniite
WebMineral
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Mindat
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SOLD
Gustavite - 51006
Gustavite - 51006

Gustavite

#51006
Locality
South Mountain dist., Owyhee Co., Idaho, United States 
Formula
AgPbBi3S6 
Availability
Sold
Size
3.5 x 3 x 2 cm - Miniature 
Tagged
sulfide , silver  

Silver metallic grain to 2mm. Ex. Bart Cannon collection so surely anaylzed by EDS.


Gustavite

Formula
AgPbBi3S6 
Crystal System
Orthorhombic 
Crystal Habit
Tabular 
Cleavage
Distinct, Distinct, None 
Luster
Metallic 
Color
steel gray 
Streak
gray 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5 
Collection
Don Phillips Collection
Mineralpedia
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On Dakota Matrix
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Mindat
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Quartz

var. agate - #52801
Locality
Los Arcoiris, Ojo Laguna, Chihuahua, Mexico 
Formula
SiO2 
Availability
Available
Price
$150.00
Reduced Price
$55.00
Size
4.5 x 3.5 x 2.5 cm - Miniature 

Both sides this specimen have bands of various shades of red and near the center are light purple bands. The photo on the left is dry and the photo on the right is wet. Wetting agate specimens always brings out the color. Beautiful specimen from this locality. All of the close-ups are wet


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
Mineralpedia
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Previously Sold Quartz
On Dakota Matrix
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Mindat
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Rhodochrosite

#AH53406
Locality
American Tunnel, Silverton, San Juan Co., Colorado, United States 
Formula
MnCO3 
Availability
Sold
Size
12 x 11 x 6 cm - Cabinet 
Tagged
carbonate  

Rich pink rhombic crystals of Rhodochrosite to 6mm with drusy white Quartz. It's a beautiful specimen for someone's cabinet.


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

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