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0 item @ $0.00  

Mixed Minerals

Sunday, 04 September 2022 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including copper, indialite, inyoite, kutnohorite, leadhillite, and shigaite and more from places like Morenci mine, Greenlee Co., Arizona, United States, Nickenicher Weinberg, Nickenich, Mayen-Koblenz dist., Eifel, Rheinland-Pfalz, Germany, U.S. Borax open pit, Kern Co., California, United States, Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States, Tiger, Pinal Co., Arizona, United States, and N'Chwaning II mine, Kalahari Mn fields, Northern Cape Province, South Africa.

Copper

with Cuprite - #RW59091
Locality
Morenci mine, Greenlee Co., Arizona, United States 
Formula
Cu 
Availability
Sold
Size
6 x 6.5 x 4.5 cm - Sm Cabinet 
Tagged
native element  

A chunk of Copper ore with native Copper, Cuprite and Azurite. The specimen is sawed on two sides. The side which is polished shows the mineralization really well. 


Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
Robert J. Waidler Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Copper
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Indialite

#57781
Locality
Nickenicher Weinberg, Nickenich, Mayen-Koblenz dist., Eifel, Rheinland-Pfalz, Germany 
Formula
Mg2Al4Si5O18 
Availability
Sold
Size
3 x 2.5 x 2 cm - Thumbnail 

Lots of light blue hexagonal crystals to about 0.75mm throughout spongy matrix. The crystals are very nice. Please see Mindat photo galleries for good photos which are much like these crystals.


Indialite

Formula
Mg2Al4Si5O18 
Crystal System
Hexagonal 
Crystal Habit
Hexagonal, Prismatic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale mauve 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Conchoidal 
Hardness
7-7.5 

Inyoite

#59125
Locality
U.S. Borax open pit, Kern Co., California, United States 
Formula
CaB3O3(OH)5·4H2
Availability
Sold
Size
4.5 x 4.5 x 2.6 cm - Miniature 

It is hard to see, but there are a set of four really good colorless and thick tabular Inyoite crystals. The largest is 1.2cm. The specimen is in very good condition and shows no dehydration unlike many other specimens.


Inyoite

Formula
CaB3O3(OH)5·4H2
Crystal System
Monoclinic 
Crystal Habit
Tabular, Massive, Spherical 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
white, pinkish white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
On Dakota Matrix
Previously Sold Inyoite
On Dakota Matrix
Other Available Inyoite
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Mindat
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Kutnohorite

#PD59139
Locality
Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States 
Formula
CaMn2+(CO3)2 
Availability
Sold
Size
8.5 x 6.5 x 4 cm - Sm Cabinet 
Tagged
carbonate  

Soft pink cleavable mass of pure Kutnohorite. Individual crystals are up to 2cm.


Kutnohorite

Formula
CaMn2+(CO3)2 
Crystal System
Trigonal 
Crystal Habit
Massive - Granular 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous - Dull 
Color
white, light yellow, light pink 
Streak
white 
Class
Trigonal - Rhombohedral 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Don Phillips Collection

Leadhillite

with Diaboleite - #59105
Locality
Tiger, Pinal Co., Arizona, United States 
Formula
Pb4(SO4)(CO3)2(OH)2 
Availability
Sold
Size
5.5 x 3.5 x 3.5 cm - Sm Cabinet 

Colorless to very faint green plates of rare Leadhillite to 5mm associated with intense blue Diaboleite. It was hard to capture the refections of the Leadhillite with the camera. It is a great old piece from this popular collecting locality.


Leadhillite

Formula
Pb4(SO4)(CO3)2(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Pseudo Hexagonal, Tabular, Massive - Granular 
Cleavage
Perfect, Indistinct, None 
Luster
Adamantine 
Color
colorless, gray, yellowish, white, light blue 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Sectile 
Hardness
2.5 

Shigaite

on Rhodochrosite - #59138
Locality
N'Chwaning II mine, Kalahari Mn fields, Northern Cape Province, South Africa 
Formula
NaAl3Mn2+6(SO4)2(OH)18·12H2
Availability
Sold
Size
3 x 1.5 x 0.4 cm - Thumbnail 

A 1mm red plate of Shigaite with numerous much smaller on pink Rhodochrosite.


Shigaite

Formula
NaAl3Mn2+6(SO4)2(OH)18·12H2
Crystal System
Trigonal 
Crystal Habit
Tabular, Hexagonal 
Cleavage
Perfect, Good, None 
Color
light yellow, orange 
Streak
yellow white 
Class
Trigonal - Rhombohedral 
Fracture
Flexible 
Hardness
Mineralpedia
View Shigaite
On Dakota Matrix
Previously Sold Shigaite
On Dakota Matrix
Other Available Shigaite
WebMineral
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Mindat
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