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0 item @ $0.00  

Mixed Minerals

Sunday, 13 December 2020 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including akaganeite, cassiterite, dickthomssenite, diopside, eulytine, and hydromagnesite and more from places like Nantan Iron Meteorite, Lihu, Nandan Co., China, Elsmore, Gough Co., New South Wales, Australia, Vanadium Queen mine, near La Sal, San Juan Co., Utah, United States, Ilmeny Mts., South Urals, Russia, Beust mine, Schneeberg, Erzgebirge, Saxony, Germany, and Staten Island, New York City, Richmond Co., New York, United States.

Akaganeite

#31371
Locality
Nantan Iron Meteorite, Lihu, Nandan Co., China 
Formula
(Fe3+,Ni2+)8(OH,O)16Cl1.25·nH2
Availability
Available
Price
$275.00
Size
3.5 x 2 x 3 cm - Miniature 
Tagged
nickel  
Special Info
Type Locality 

This is a meteorite which fell in 1516 and not found until 1958. It is sawed on one side, so probably analyzed. You can actually see some alterations to a green mineral, indicating there is a component of nickel in the mineral. The Akaganeite is within the orange crusts at the top and sides and mixed with goethite.


Akaganeite

Formula
(Fe3+,Ni2+)8(OH,O)16Cl1.25·nH2
Crystal System
Monoclinic 
Crystal Habit
Massive, Powdery 
Luster
Adamantine - Metallic 
Color
brown, rusty brown 
Streak
brownish yellow 
Class
Monoclinic - Prismatic 
Hardness
Special Info
Type Locality

Cassiterite

#54764
Locality
Elsmore, Gough Co., New South Wales, Australia 
Formula
SnO2 
Availability
Sold
Size
0.8 x 0.8 x 0.7 cm - Thumbnail 

Nice little eudedral set of twinned crystals to 8mm across. 


Cassiterite

Formula
SnO2 
Crystal System
Tetragonal 
Crystal Habit
Prismatic, Massive, Botryoidal 
Cleavage
Perfect, Indistinct, None 
Luster
Adamantine 
Color
brown, brownish black, colorless, green, gray 
Streak
brownish white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Irregular 
Hardness
6-7 

Dickthomssenite

#54776
Locality
Vanadium Queen mine, near La Sal, San Juan Co., Utah, United States 
Formula
MgV2O6·7H2
Availability
Sold
Size
5 x 3 x 2 cm - Miniature 
Tagged
vanadium  

Green sugary-looking masses masses on matrix.


Dickthomssenite

Formula
MgV2O6·7H2
Crystal System
Monoclinic 
Crystal Habit
Platy, Radial, Microscopic Crystals 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
light golden brown 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Hackly 
Hardness
2.5 

Diopside

#54740
Locality
Ilmeny Mts., South Urals, Russia 
Formula
CaMgSi2O6 
Availability
Available
Price
$35.00
Size
6 x 4 x 4 cm - Sm Cabinet 

Large light green Diopside crystals to 2cm embedded in skarn-type rock matrix with likely white Tremolite. By rocking the specimen back-and-forth, the Diospide crystals are easily seen.


Diopside

Formula
CaMgSi2O6 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Blocky, Granular 
Cleavage
Good, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
blue, brown, colorless, green, gray 
Streak
white green 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
Mineralpedia
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On Dakota Matrix
Previously Sold Diopside
On Dakota Matrix
Other Available Diopside
WebMineral
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Mindat
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SOLD
Eulytine - 51360
Eulytine - 51360

Eulytine

#51360
Locality
Beust mine, Schneeberg, Erzgebirge, Saxony, Germany 
Formula
Bi4(SiO4)3 
Availability
Sold
Size
6.5 x 5 x 2.5 cm - Sm Cabinet 

A single spheroidal crystal of Eulytine to 1mm. 


Eulytine

Formula
Bi4(SiO4)3 
Mineralpedia
View Eulytine
On Dakota Matrix
Previously Sold Eulytine
On Dakota Matrix
Other Available Eulytine
WebMineral
View Eulytine
Mindat
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Hydromagnesite

#54761
Locality
Staten Island, New York City, Richmond Co., New York, United States 
Formula
Mg5(CO3)4(OH)2·4H2
Availability
Available
Price
$45.00
Size
7 x 6 x 2 cm - Sm Cabinet 
Tagged
carbonate  

Snow white acicular sprays of Artinite from New York City!


Hydromagnesite

Formula
Mg5(CO3)4(OH)2·4H2
Crystal System
Monoclinic 
Crystal Habit
Acicular, Encrustations 
Cleavage
Perfect, Distinct, None 
Luster
Silky 
Color
colorless, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
3.5 

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