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0 item @ $0.00  

Mixed Minerals

Thursday, 07 February 2019 08:00 AM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including datolite, edoylerite, eucairite, franckeite, germanite, and haiweeite and more from places like Freiberg dist., Erzgebirge, Saxony, Germany, Clear Creek mine, San Benito Co., California, United States, Sierra de Umango, La Rioja, Argentina, San José mine, Oruro City, Oruro Dept., Bolivia, Tsumeb mine, Tsumeb, Namibia, and Mammoth mine, Jeff Davis Co., Texas, United States.

Datolite

with Calcite - #50182
Locality
Freiberg dist., Erzgebirge, Saxony, Germany 
Formula
CaBSiO4(OH) 
Availability
Available
Price
$95.00
Size
7 x 5 x 2 cm - Sm Cabinet 

Colorless to yellow crystals of Datolite (?) to 1.2cm with discoidal Calcite.


Datolite

Formula
CaBSiO4(OH) 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Granular, Porcelainous 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, yellow, white, light green 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5 
Collection
Don Phillips Collection
Mineralpedia
View Datolite
On Dakota Matrix
Previously Sold Datolite
On Dakota Matrix
Other Available Datolite
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Mindat
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SOLD
Edoylerite - 50165
Edoylerite - 50165

Edoylerite

with Cinnabar - #50165
Locality
Clear Creek mine, San Benito Co., California, United States 
Formula
Hg2+3(Cr6+O4)S2 
Availability
Sold
Size
8 x 3 x 4 cm - Sm Cabinet 

Bright glassy tiny needles of Edoylerite (blue arrow) with yellow unknown (CCUK-8) crusts.


Edoylerite

Formula
Hg2+3(Cr6+O4)S2 
Crystal System
Monoclinic 
Crystal Habit
Acicular, Prismatic, Stellate 
Cleavage
Good, Fair, None 
Luster
Adamantine 
Color
greenish yellow, orange 
Streak
yellow 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Subconchoidal 
Hardness
SOLD
Eucairite - RW47275
Eucairite - RW47275

Eucairite

with Umangite & Klockmanite - #RW47275
Locality
Sierra de Umango, La Rioja, Argentina 
Formula
CuAgSe 
Availability
Sold
Size
4 x 3.5 x 3 cm - Miniature 
Tagged
sulfide , copper , selenium , silver  

The specimen is probably mostly Umangite, judging by the purplish tarnish. Although there are components of Eucairite since silver was detected by microprobe analysis performed by Cannon Microprobe. 


Eucairite

Formula
CuAgSe 
Crystal System
Orthorhombic 
Crystal Habit
Aggregates 
Cleavage
None, None, None 
Luster
Metallic 
Color
bronze, bronze, gray, silver white, tin white 
Streak
gray white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Subconchoidal 
Hardness
2.5 
Collection
Robert J. Waidler Collection
Mineralpedia
View Eucairite
On Dakota Matrix
Previously Sold Eucairite
On Dakota Matrix
Other Available Eucairite
WebMineral
View Eucairite
Mindat
View Eucairite

Franckeite

#RW50214
Locality
San José mine, Oruro City, Oruro Dept., Bolivia 
Formula
Fe2+(Pb,Sn2+)6Sn4+2Sb3+2S14 
Availability
Sold
Size
7 x 5 x 3 cm - Sm Cabinet 
Tagged
ore mineral , sulfide , tin  

Tiny prismatic crystals in 4-6mm rounded clusters. Excellent specimen.


Franckeite

Formula
Fe2+(Pb,Sn2+)6Sn4+2Sb3+2S14 
Crystal System
Triclinic 
Crystal Habit
Tabular, Massive - Fibrous, Radial 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
grayish black, blackish gray 
Streak
grayish black 
Class
Triclinic - Pinacoidal 
Fracture
Flexible 
Hardness
2.5 
Collection
Robert J. Waidler Collection
SOLD
Germanite - PD50215
Germanite - PD50215

Germanite

#PD50215
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
Cu13Fe2Ge2S16 
Availability
Sold
Size
7.5 x 4 x 2.5 cm - Sm Cabinet 
Tagged
sulfide , copper  

Solid, pure rare Germanite with tarnished colors purplish to bluish.


Germanite

Formula
Cu13Fe2Ge2S16 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, red gray 
Streak
dark gray 
Class
Isometric - Hextetrahedral 
Fracture
Brittle 
Hardness
Collection
Don Phillips Collection
Mineralpedia
View Germanite
On Dakota Matrix
Previously Sold Germanite
On Dakota Matrix
Other Available Germanite
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Mindat
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Haiweeite

with Uranophane - #33055
Locality
Mammoth mine, Jeff Davis Co., Texas, United States 
Formula
Ca(UO2)2Si5O12(OH)2·3H2
Availability
Sold
Size
7.5 x 4 x 2 cm - Sm Cabinet 
Special Info
Radioactive!! 

Yellow Haweeite in clusters with glassy yellow prismatic Uranophane to 1.5mm.


Haiweeite

Formula
Ca(UO2)2Si5O12(OH)2·3H2
Crystal System
Orthorhombic 
Crystal Habit
Microscopic Crystals, Spherical, Aggregates 
Cleavage
Good, None, None 
Luster
Pearly 
Color
greenish yellow, light yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5 
Special Info
Radioactive!!
Mineralpedia
View Haiweeite
On Dakota Matrix
Previously Sold Haiweeite
On Dakota Matrix
Other Available Haiweeite
WebMineral
View Haiweeite
Mindat
View Haiweeite

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