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1 item @ $125.00  

Mixed Minerals

Sunday, 19 September 2021 05:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including albite, cassiterite, chondrodite, heyrovskyite, libethenite, and lorandite and more from places like Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada, White Cap mine, Pennington Co., South Dakota, United States, Franklin, Sussex Co., New Jersey, United States, Reward prospects, Lander Co., Nevada, United States, Laurium, Attika, Greece, and Allchar, Roszdan, Macedonia.

Albite

pseudo after Analcime - #RW56498
Locality
Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada 
Formula
NaAlSi3O8 
Availability
Sold
Size
6 x 3.5 x 3 cm - Sm Cabinet 

Interesting specimen of former Analcime crystals hollowed out after replacement by Albite leaving behind the epimorphs.


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Collection
Robert J. Waidler Collection
Mineralpedia
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Cassiterite

in Lepidolite - #56492
Locality
White Cap mine, Pennington Co., South Dakota, United States 
Formula
SnO2 
Availability
Available
Price
$55.00
Size
7 x 5 x 2 cm - Sm Cabinet 

They called this stuff "pepper" cassiterite for its resemblance of pepper in rock. This particular piece shows plenty of tetragonal octahedrons to 2mm. The White Cap mine is one of the better localities for Cassiterite in the Black Hills.


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 

Chondrodite

#RW56490
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
Mg5(SiO4)2F2 
Availability
Sold
Size
7.5 x 3 x 4 cm - Sm Cabinet 

Rich specimen of yellow Chondradite grains to well over 7mm.


Chondrodite

Formula
Mg5(SiO4)2F2 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine, Massive - Granular 
Cleavage
Good, None, None 
Luster
Vitreous - Greasy 
Color
yellow, orange, brownish white, reddish white, greenish white 
Streak
gray 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
6-6.5 
Collection
Robert J. Waidler Collection

Heyrovskyite

with Bismuth - #BN56478
Locality
Reward prospects, Lander Co., Nevada, United States 
Formula
Pb6Bi2S9 
Availability
Sold
Size
3.5 x 3 x 1.5 cm - Miniature 
Tagged
sulfide  

Silvery, granular Heyrovskite with Bismuth (streaky porsions).


Heyrovskyite

Formula
Pb6Bi2S9 
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Prismatic 
Cleavage
None, None, None 
Luster
Metallic 
Color
tin white 
Streak
grayish black 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Dr. Buford Nichols Collection

Libethenite

with Azurite - #53865
Locality
Laurium, Attika, Greece 
Formula
Cu2PO4(OH) 
Availability
Available
Price
$85.00
Size
8 x 7 x 5 cm - Sm Cabinet 
Tagged
phosphate , copper  

Superb crystal sprays of green Libethenite to 2mm across with deep blue azute. Very nice combination specimen.


Libethenite

Formula
Cu2PO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Druse, Globular 
Cleavage
Indistinct, Indistinct, None 
Luster
Vitreous - Greasy 
Color
green, dark green, blackish green, light olive green, dark olive green 
Streak
light green 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness

Lorandite

with Orpiment - #54110
Locality
Allchar, Roszdan, Macedonia 
Formula
TlAsS2 
Availability
Available
Price
$95.00
Size
5.5 x 3.5 x 4 cm - Sm Cabinet 
Tagged
sulfide  
Special Info
Type Locality 

A whopper of a Lorandite crystal to 1cm with a few smaller on the backside.


Lorandite

Formula
TlAsS2 
Crystal System
Monoclinic 
Crystal Habit
Tabular, Prismatic 
Cleavage
Perfect, Distinct, None 
Luster
Sub Metallic 
Color
red, carmine red, blackish lead gray 
Streak
red 
Class
Monoclinic - Prismatic 
Fracture
Flexible 
Hardness
2-2.5 
Special Info
Type Locality

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