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Rare Minerals for Sale

Saturday, 23 November 2019 04:00 PM

Introducing the "Rare Minerals for Sale" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including hubeite, khinite, kingsmountite, leucophosphite, linarite, and lorenzenite and more from places like Fengjiashan mine, Huangshi, Hubei, China, Empire mine, Tombstone, Cochise Co., Arizona, United States, Foote mine, Cleveland Co., North Carolina, United States, Tip Top mine, Custer Co., South Dakota, United States, Mex-Tex mine, Bingham, Socorro Co., New Mexico, United States, and Point of Rocks quarry, Colfax Co., New Mexico, United States.

Hubeite

with Inesite - #AH51847
Locality
Fengjiashan mine, Huangshi, Hubei, China 
Formula
Ca2Mn2+Fe3+Si4O12(OH)·2H2
Availability
Sold
Size
2.5 x 2 x 1 cm - Thumbnail 

A relatively new IMA approved mineral featuring dark root beer colored crystals of Hubeite to 3mm with minor pink bladed Inestie.


Hubeite

Formula
Ca2Mn2+Fe3+Si4O12(OH)·2H2
Crystal System
Triclinic 
Crystal Habit
Radial, Rosette, Aggregates 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
dark brown, light brown 
Streak
pale orange brown 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Conchoidal 
Hardness
5.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Hubeite
On Dakota Matrix
Previously Sold Hubeite
On Dakota Matrix
Other Available Hubeite
WebMineral
View Hubeite
Mindat
View Hubeite

Khinite

with Dugganite - #51792
Locality
Empire mine, Tombstone, Cochise Co., Arizona, United States 
Formula
Cu2+3PbTe6+O6(OH)2 
Availability
Sold
Size
2.1 x 1.4 x 1.3 cm - Thumbnail 
Tagged
copper , tellurium  

Tiny emerald platy crystals of Khinite in tiny vugs with most of the matrix covered by green Dugganite. Verified by Raman.


Khinite

Formula
Cu2+3PbTe6+O6(OH)2 
Crystal System
Orthorhombic 
Cleavage
Distinct, None, None 
Luster
Adamantine 
Color
dark green 
Streak
green 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5 
Mineralpedia
View Khinite
On Dakota Matrix
Previously Sold Khinite
On Dakota Matrix
Other Available Khinite
WebMineral
View Khinite
Mindat
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Kingsmountite

#AH51791
Locality
Foote mine, Cleveland Co., North Carolina, United States 
Formula
Ca4Fe2+Al4(PO4)6(OH)4·12H2
Availability
Sold
Size
3.0 x 2.5 x 1.5 cm - Thumbnail 
Tagged
phosphate , pegmatite mineral  
Special Info
Type Locality 

Radial groups to 0.75mm of white or colorless Kingsmountite crystals.

Kingmountite  crystals are much like Montgomeryite both of which form lath-like crystals with a sloping terminations. It is in fact isostructural with Montgomeryite and both are members of the Calcioferrite group. It is also the iron analogue of Montgomeryite and is usually white and sometimes light pink. The best specimens are probably from Hagendorf, although many fine specimens have been collected at Foote. It is primarily a mineral which forms in pegmatites, although has occured in bat caves and hydrothermal altered phosphate rich sedimentary deposits This can be considered a good specimen with both good coverage and crystal groups. 


Kingsmountite

Formula
Ca4Fe2+Al4(PO4)6(OH)4·12H2
Crystal System
Monoclinic 
Crystal Habit
Bladed, Radial, Spherical 
Luster
Pearly 
Color
light brown, pearl white 
Streak
white 
Class
Monoclinic - Sphenoidal 
Hardness
2.5 
Collection
Arnold G Hampson Collection
Special Info
Type Locality

Leucophosphite

#51797
Locality
Tip Top mine, Custer Co., South Dakota, United States 
Formula
KFe3+2(PO4)2(OH)·2H2
Availability
Sold
Size
3 x 4 x 3 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

Purple lustrous Leucophosphite crystals to 2mm. Minor jahnsite.


Leucophosphite

Formula
KFe3+2(PO4)2(OH)·2H2
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Dull 
Color
brown, brownish yellow, colorless, greenish, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
3.5 

Linarite

#AH51811
Locality
Mex-Tex mine, Bingham, Socorro Co., New Mexico, United States 
Formula
PbCuSO4(OH)2 
Availability
Sold
Size
9 x 5 x 5 cm - Sm Cabinet 
Tagged
copper  

5 to 11mm rich blue, bladed Linarite crystals on Baryte and Quartz. Very good specimen.


Linarite

Formula
PbCuSO4(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Platy, Encrustations 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous (Glassy) 
Color
sky blue, deep blue 
Streak
light blue 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
2.5 
Collection
Arnold G Hampson Collection
Mineralpedia
View Linarite
On Dakota Matrix
Previously Sold Linarite
On Dakota Matrix
Other Available Linarite
WebMineral
View Linarite
Mindat
View Linarite

Lorenzenite

#AH51750
Locality
Point of Rocks quarry, Colfax Co., New Mexico, United States 
Formula
Na2Ti2O3(Si2O6
Availability
Sold
Size
6.5 x 6 x 5 cm - Sm Cabinet 

Incredible sprays of rusty red Lorenzenite crystals to 2mm well protected in vug. There are 17 sprays. Exceptional specimen for the locality.


Lorenzenite

Formula
Na2Ti2O3(Si2O6
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Granular, Massive - Fibrous 
Cleavage
Distinct, Distinct, None 
Luster
Vitreous - Greasy 
Color
brown, colorless, green, white, light blue 
Streak
light brownish yellow 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Arnold G Hampson Collection

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