Difference between revisions of "Template:Sard"

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Line 17: Line 17:
 
| Optic nature || edit me
 
| Optic nature || edit me
 
|-
 
|-
| Refraction index || 1.544 - 1.553
+
| Refractive index || 1.544 - 1.553
 
|-  
 
|-  
 
| Birefringence || 0.009
 
| Birefringence || 0.009

Revision as of 11:55, 1 November 2006

Sard
Chemical composition Silicon Dioxide SiO2
Crystal system Trigonal
Habit edit me
Cleavage poor
Fracture very brittle, conchoidal
Hardness 7
Optic nature edit me
Refractive index 1.544 - 1.553
Birefringence 0.009
Dispersion 0.013
Specific gravity 2.65
Lustre Vitreous
Pleochroism None