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0 item @ $0.00  

Mixed Minerals

Sunday, 24 June 2018 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including forsterite, nickeline, and uvarovite and more from places like Jacupiranga mine, Cajati, São Paulo, Brazil, Nipissing mine, Cobalt, Timiskaming dist., Ontario, Canada, and Jacksonville dist., Mother Lode Belt, Tuolumne Co., California, United States.

Forsterite

with Magnetite - #PD49223
Locality
Jacupiranga mine, Cajati, São Paulo, Brazil 
Formula
Mg2SiO4 
Availability
Available
Price
$75.00
Size
9 x 6 x 4 cm - Sm Cabinet 

Yellowish, dull, equant Forsterite to 2cm with dull black octahedral Magnetite to 2.5cm.


Forsterite

Formula
Mg2SiO4 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Fine, Tabular 
Cleavage
Good, Distinct, None 
Luster
Vitreous (Glassy) 
Color
colorless, green, yellow, yellow green, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
6-7 
Collection
Don Phillips Collection

Nickeline

#RW49224
Locality
Nipissing mine, Cobalt, Timiskaming dist., Ontario, Canada 
Formula
NiAs 
Availability
Available
Price
$125.00
Size
12 x 9 x 2.5 cm - Cabinet 
Tagged
nickel  

Large crystalline mass of brassy gold Nickeline. It is a cut flat on one side to show the many veinlets which have penetrated the original rock.


Nickeline

Formula
NiAs 
Crystal System
Hexagonal 
Crystal Habit
Massive, Reniform, Columnar 
Cleavage
Imperfect, Imperfect, None 
Luster
Metallic 
Color
lead gray, grayish, copper, black 
Streak
brownish black 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Uneven 
Hardness
5.5 
Collection
Robert J. Waidler Collection
Mineralpedia
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Uvarovite

with Clinochlore - #49078
Locality
Jacksonville dist., Mother Lode Belt, Tuolumne Co., California, United States 
Formula
Ca3Cr2(SiO4)3 
Availability
Available
Price
$175.00
Size
6 x 4 x 2.5 cm - Sm Cabinet 

Good coverage of deep emerald green Uvarovite crystals to 1mm with purple chromium Clinichlore.


Uvarovite

Formula
Ca3Cr2(SiO4)3 
Crystal System
Isometric 
Crystal Habit
Crystalline - Fine, Crystalline - Fine, Lamellar 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
green 
Streak
white 
Class
Isometric - Hexoctahedral 
Fracture
Brittle 
Hardness
6.5-7 
Mineralpedia
View Uvarovite
On Dakota Matrix
Previously Sold Uvarovite
On Dakota Matrix
Other Available Uvarovite
WebMineral
View Uvarovite
Mindat
View Uvarovite

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