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Mixed Minerals

Friday, 03 February 2017 11:30 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including babanekite, baryte, beryl, carlosbarbosaite, danburite, and djurleite and more from places like Rovnost mine, Jachymov, Erzgegirge, Bohemia, Czech Republic, Huancavelica, Peru, Ping Wu, Mei Yang, Schuang Province, China, Jaguaraçu pegmatite, Jaguaraçu, Minas Gerais, Brazil, San Luis Potosi, Mexico, and Tsumeb mine, Tsumeb, Namibia.

Babanekite

with Strashimirite - #46348
Locality
Rovnost mine, Jachymov, Erzgegirge, Bohemia, Czech Republic 
Formula
Cu3(AsO4)2 · 8H2
Availability
Available
Price
$275.00
Size
3 x 2 x 2 cm - Thumbnail 
Tagged
arsenate , copper  
Special Info
Type Locality 
Special Info
EDS Confirmed 

Babanekite is the copper member of the Vivianite group. It's fun to look at these minerals as they all look the same just different colors. Babanekite was described in 2012. The crystals on this specimen are less than 0.3mm and are pink, not green as you would think. It probably contains small amounts of cobalt. From Dr. Hyrsl Jaroslav's stock.


Special Info
Type Locality
Special Info
EDS Confirmed

Baryte

on Pyrite - #DS43079
Locality
Huancavelica, Peru 
Formula
BaSO4 
Availability
Sold
Size
11 x 7 x 5 cm - Cabinet 

Colorless, thin tabular crystals to 1.5cm on Pyrite. Large specimen.


Baryte

Formula
BaSO4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Massive - Fibrous 
Cleavage
Perfect, Perfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, grayish white, brownish white, dark brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
3-3.5 
Collection
Shultz Collection
Mineralpedia
View Baryte
On Dakota Matrix
Previously Sold Baryte
On Dakota Matrix
Other Available Baryte
WebMineral
View Baryte
Mindat
View Baryte

Beryl

with Muscovite and Microcline - #46264
Locality
Ping Wu, Mei Yang, Schuang Province, China 
Formula
Be3Al2Si6O18 
Availability
Available
Price
$45.00
Size
5.5 x 5 x 3.5 cm - Sm Cabinet 
Tagged
beryllium  

Multiple Baveno twin of Microcline altered to Albite with a cluster of aquamarine Beryl crystals to 1cm and more at the base..


Beryl

Formula
Be3Al2Si6O18 
Crystal System
Hexagonal 
Crystal Habit
Crystalline - Coarse, Prismatic, Columnar 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Resinous 
Color
green, blue, yellow, colorless, pink 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
7.5-8 
Collection
Chris van Laer Collection
Mineralpedia
View Beryl
On Dakota Matrix
Previously Sold Beryl
On Dakota Matrix
Other Available Beryl
WebMineral
View Beryl
Mindat
View Beryl
SOLD
Carlosbarbosaite - 46358
Carlosbarbosaite - 46358

Carlosbarbosaite

#46358
Locality
Jaguaraçu pegmatite, Jaguaraçu, Minas Gerais, Brazil 
Formula
(Ca0.50.5)(UO2)2(Nb5+Si)O6(OH)2·2H2
Availability
Sold
Size
3 x 2 x 2 cm - Thumbnail 
Special Info
Radioactive!! 

Yellow micro crystals in 5x5mm area. Very rare. From Dr. Hyrsl Jaroslav's stock.


Carlosbarbosaite

Formula
(Ca0.5[ ]0.5)(UO2)2(Nb5+Si)O6(OH)2·2H2
Special Info
Radioactive!!

Danburite

#46219
Locality
San Luis Potosi, Mexico 
Formula
CaB2Si2O8 
Availability
Sold
Size
6 x 2.7 x 2.5 cm - Sm Cabinet 

A single, terminated pink crystal.


Danburite

Formula
CaB2Si2O8 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Disseminated, Euhedral Crystals 
Cleavage
Poor, None, None 
Luster
Vitreous - Greasy 
Color
colorless, white, gray, brownish white, straw yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
Collection
Chris van Laer Collection
Mineralpedia
View Danburite
On Dakota Matrix
Previously Sold Danburite
On Dakota Matrix
Other Available Danburite
WebMineral
View Danburite
Mindat
View Danburite

Djurleite

with Chalcocite - #38374
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
Cu31S16 
Availability
Sold
Size
2 x 1.3 x 1 cm - Thumbnail 
Tagged
sulfide , copper  

Striated shiny black-grey crystals to 2mm on Chalcocite.


Djurleite

Formula
Cu31S16 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Tabular, Massive - Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
lead gray, blue black, black, black gray 
Streak
metallic 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
2.5-3 

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