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1 item @ $40.00  

Wilkinsonite

#BAC61605

Wilkinsonite

#BAC61605
Availability
Sold
Size
6 x 4.5 x 2 cm - Sm Cabinet 
Formula
Na4(Fe2+8Fe3+4)O4[Si12O36] (RRUFF)
Locality
Warrumbungle Volcano, Gowen Co., New South Wales, Australia

Wilkinsonite occurs in eruptive peralkaline trachytes and forms a series with aenigmatite. You can't see this mineral even with a microscope as it forms black grains less than 50 microns. In association is a host of other minerals including probable anorthoclase, sodalite, clinopyroxenes, nepheline, analcime, arfvedsonite. Wilkinsonite occurs in only 5 localities worldwide, one of these is from a meteorite.

Type Locality

Wilkinsonite

Formula
Na4(Fe2+8Fe3+4)O4[Si12O36
Crystal System
Triclinic 
Luster
Vitreous (Glassy) 
Color
black 
Streak
brown 
Class
Triclinic - Pinacoidal 
Hardness

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection
Special Info
Type Locality

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