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Mixed Minerals

Friday, 28 June 2019 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including turquoise, uranophane, vayrynenite, veszelyite, vivianite, and zircon and more from places like Mona Lisa mine, Porter Mountain, Gilham, Polk Co., Arkansas, United States, Grants dist., McKinley Co., New Mexico, United States, Viitaniemi pegmatite, Eräjärvi area, Orivesi, Etelä-Suomen Lääni, Finland, Black Pine mine, Philipsburg, Granite Co., Montana, United States, Palermo mine, Groton, Grafton Co., New Hampshire, United States, and Miask, South Urals, Russia.

Turquoise

#50948
Locality
Mona Lisa mine, Porter Mountain, Gilham, Polk Co., Arkansas, United States 
Formula
CuAl6(PO4)4(OH)8·4H2
Availability
Sold
Size
5 x 2.5 x 2 cm - Miniature 
Tagged
phosphate , copper  

Just a beautiful sky blue nuggett of Turquoise.


Turquoise

Formula
CuAl6(PO4)4(OH)8·4H2
Crystal System
Triclinic 
Crystal Habit
Concretionary, Massive, Encrustations 
Cleavage
Perfect, Good, None 
Luster
Waxy 
Color
blue, blue green, green, green gray, light blue 
Streak
pale bluish white 
Class
Triclinic - Pinacoidal 
Fracture
Conchoidal 
Hardness
5-6 
Mineralpedia
View Turquoise
On Dakota Matrix
Previously Sold Turquoise
On Dakota Matrix
Other Available Turquoise
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Uranophane

#50978
Locality
Grants dist., McKinley Co., New Mexico, United States 
Formula
Ca(UO2)2(SiO3OH)2·5H2
Availability
Sold
Size
8 x 7.5 x 4 cm - Sm Cabinet 

Bright yellow earthy coating od Uranophane with Calcite overcoat in most areas.


Uranophane

Formula
Ca(UO2)2SiO3(OH)2*5(H2O) 
Crystal System
Monoclinic 
Crystal Habit
Radial, Earthy, Massive - Fibrous 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
yellow, yellow brown, yellow green, yellow orange, light yellow 
Streak
yellowish white 
Class
Monoclinic - Sphenoidal 
Fracture
Uneven 
Hardness
2.5 
SOLD
Vayrynenite - 50973
Vayrynenite - 50973

Vayrynenite

#50973
Locality
Viitaniemi pegmatite, Eräjärvi area, Orivesi, Etelä-Suomen Lääni, Finland 
Formula
Mn2+Be(PO4)OH 
Availability
Sold
Size
3 x 2.5 x 2 cm - Thumbnail 
Tagged
phosphate , beryllium , pegmatite mineral  
Special Info
Type Locality 

Purplish pink "vein" of Vayrynenite with probably Hurlbutite association.


Vayrynenite

Formula
Mn2+Be(PO4)OH 
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
pink, rose red 
Class
Monoclinic - Prismatic 
Hardness
Special Info
Type Locality

Veszelyite

#50961
Locality
Black Pine mine, Philipsburg, Granite Co., Montana, United States 
Formula
Cu2+3PO4(OH)3·2H2
Availability
Sold
Size
1.1 x 0.9 x 0.4 cm - Thumbnail 
Tagged
phosphate , copper  

Superb crystal group with sharp terminations and outstanding color.


Veszelyite

Formula
Cu2+3PO4(OH)3·2H2
Crystal System
Monoclinic 
Crystal Habit
Tabular, Equant Grains, Massive - Granular 
Cleavage
Good, Good, None 
Luster
Vitreous (Glassy) 
Color
blue green, green, dark blue 
Streak
blue 
Class
Monoclinic - Prismatic 
Hardness
3.5-4 

Vivianite

with Ludlamite - #50977
Locality
Palermo mine, Groton, Grafton Co., New Hampshire, United States 
Formula
Fe2+3(PO4)2·8H2
Availability
Sold
Size
5.5 x 3.5 x 3 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

Rich specimen for the blue, platy Vivianite crystals to 1.3mm with crystalline yellow-brown Ludlamite.


Vivianite

Formula
Fe2+3(PO4)2·8H2
Crystal System
Monoclinic 
Crystal Habit
Divergent, Concretionary, Earthy 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
colorless, green, blue, dark green, dark bluish green 
Streak
bluish white 
Class
Monoclinic - Prismatic 
Fracture
Sectile 
Hardness
1.5-2 
Mineralpedia
View Vivianite
On Dakota Matrix
Previously Sold Vivianite
On Dakota Matrix
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Mindat
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Zircon

#PD30247
Locality
Miask, South Urals, Russia 
Formula
ZrSiO4 
Availability
Sold
Size
9.5 x 5.5 x 3.5 cm - Cabinet 

Old specimen with a large 1.5 x 1.5cm Zircon crystal with a old George English and University of Chicago label.


Zircon

Formula
ZrSiO4 
Crystal System
Tetragonal 
Crystal Habit
Prismatic, Tabular, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Adamantine 
Color
brown, reddish brown, colorless, gray, green 
Streak
white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Uneven 
Hardness
7.5 
Collection
Don Phillips Collection
Mineralpedia
View Zircon
On Dakota Matrix
Previously Sold Zircon
On Dakota Matrix
Other Available Zircon
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Mindat
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