Difference between revisions of "Labradorite"

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{{Labradorite}}
 
{{Labradorite}}
 
[[Image:Labrador.JPG|left|framed|Labradorite]]<br clear="left" />
 
[[Image:Labrador.JPG|left|framed|Labradorite]]<br clear="left" />
Microscopic image of labradorite taken at 45x magnification:
+
Microscopic image of labradorite taken at 45x magnification (ilmenite inclusions):
 
[[Image:Labradorite 45x incident.JPG|left|thumbnail|200px]]
 
[[Image:Labradorite 45x incident.JPG|left|thumbnail|200px]]

Latest revision as of 08:29, 23 February 2011

Labradorite
Chemical composition Plagioclase feldspar
Crystal system Triclinic
Habit Aggregates
Hardness 5-5.5
Optic nature Biaxial +
Refractive index 1.559-1.570
Birefringence 0.008-0.011
Dispersion Low
Specific gravity 2.70
Lustre Vitreous
Labradorite

Microscopic image of labradorite taken at 45x magnification (ilmenite inclusions):

Labradorite 45x incident.JPG