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0 item @ $0.00  

Mixed Minerals

Sunday, 05 January 2020 05:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including lazarenkoite, margarite, mixite, navajoite, oligoclase, and pyrite and more from places like Khovu-Aksy, Tuva, Siberia, Russia, Chester Emery mines, Hampden Co., Massachusetts, United States, Gold Hill mine, Tooele Co., Utah, United States, Monument No. 2 mine, Apache Co., Arizona, United States, Kolemainen quarry, Amherst, Hillsborough Co., New Hampshire, United States, and Sacremento pit, Bisbee, Cochise Co., Arizona, United States.

SOLD
Lazarenkoite - 50482
Lazarenkoite - 50482

Lazarenkoite

#50482
Locality
Khovu-Aksy, Tuva, Siberia, Russia 
Formula
CaFe3+As3+3O7·3H2
Availability
Sold
Size
1 x 1 x 0.5 cm - Thumbnail 
Tagged
arsenate  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 
Special Info
Type & Only Locality 

Bright orange fibrous crystals. Lazarenkoite is a three locality mineral according to Mindat. Identified by Dr. Igor Pekov.


Lazarenkoite

Formula
CaFe3+As3+3O7·3H2
Crystal System
Orthorhombic 
Crystal Habit
Fibrous, Encrustations 
Luster
Resinous 
Color
light orange 
Streak
light yellow 
Class
Orthorhombic 
Hardness
Special Info
XRD Confirmed
Special Info
EDS Confirmed
Special Info
Type & Only Locality

Margarite

#AH52053
Locality
Chester Emery mines, Hampden Co., Massachusetts, United States 
Formula
CaAl2(Si2Al2)O10(OH)2 
Availability
Sold
Size
7 x 6 x 5 cm - Sm Cabinet 

Large 1cm plus pinkish purple micaceous plates of Margarite. Excellent large specimen.


Margarite

Formula
CaAl2(Si2Al2)O10(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Lamellar, Massive - Lamellar, Scaly 
Cleavage
Good, None, None 
Luster
Pearly 
Color
white, gray, pinkish gray, yellowish gray 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
Collection
Arnold G Hampson Collection
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Previously Sold Margarite
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Other Available Margarite
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SOLD
Mixite - AH52088
Mixite - AH52088

Mixite

#AH52088
Locality
Gold Hill mine, Tooele Co., Utah, United States 
Formula
Cu2+6Bi(AsO4)3(OH)6·3H2
Availability
Sold
Size
6 x 4 x 1.5 cm - Sm Cabinet 
Tagged
arsenate , copper  

Bluish green sprays of Mixite 2 to 4mm across.


Mixite

Formula
Cu2+6Bi(AsO4)3(OH)6·3H2
Crystal System
Hexagonal 
Crystal Habit
Acicular, Radial, Encrustations 
Luster
Adamantine 
Color
blue green, yellow green, white, light blue, light green 
Streak
pale green 
Class
Hexagonal - Dipyramidal 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Arnold G Hampson Collection
Mineralpedia
View Mixite
On Dakota Matrix
Previously Sold Mixite
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Other Available Mixite
WebMineral
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Mindat
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SOLD
Navajoite - AH52070
Navajoite - AH52070

Navajoite

#AH52070
Locality
Monument No. 2 mine, Apache Co., Arizona, United States 
Formula
(V5+,Fe3+)10O24·12H2
Availability
Sold
Size
8 x 6 x 4 cm - Sm Cabinet 
Tagged
vanadium  

Reddish impregnation of Navajoite throughout.


Navajoite

Formula
(V5+,Fe3+)10O24·12H2
Crystal System
Monoclinic 
Cleavage
None, None, None 
Luster
Adamantine 
Color
dark brown 
Streak
brown 
Class
Monoclinic - Prismatic 
Hardness
1.5 
Collection
Arnold G Hampson Collection
Mineralpedia
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Previously Sold Navajoite
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Other Available Navajoite
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Mindat
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Oligoclase

#AH52075
Locality
Kolemainen quarry, Amherst, Hillsborough Co., New Hampshire, United States 
Formula
Na0.9-0.7Ca0.1-0.3Al1.1-1.3Si2.9-2.7O8 
Availability
Sold
Size
8 x 5 x 5 cm - Sm Cabinet 

A 3cm, selnder, prismatic crystal of Oligoclase in pegmatite rock. Collected by Hampson in 1965.


Oligoclase

Formula
Na0.9-0.7Ca0.1-0.3Al1.1-1.3Si2.9-2.7O8 
Crystal System
Triclinic 
Crystal Habit
Euhedral Crystals, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, greenish, gray, yellowish 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection

Pyrite

#AH52051
Locality
Sacremento pit, Bisbee, Cochise Co., Arizona, United States 
Formula
FeS2 
Availability
Sold
Size
9 x 9 x 3.5 cm - Sm Cabinet 
Tagged
sulfide  

Clusters of 6-8mm Pyrite crystals.


Pyrite

Formula
FeS2 
Crystal System
Isometric 
Crystal Habit
Striated, Druse, Stalactitic 
Cleavage
Poor, Poor, None 
Luster
Metallic 
Color
pale brass yellow 
Streak
greenish black 
Class
Isometric - Diploidal 
Fracture
Conchoidal 
Hardness
6.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Pyrite
On Dakota Matrix
Previously Sold Pyrite
On Dakota Matrix
Other Available Pyrite
WebMineral
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Mindat
View Pyrite

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