Difference between revisions of "Template:Chalcedony"

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! colspan=2 | Chalcedony
 
! colspan=2 | Chalcedony
 
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| Chemical composition || Silicon dioxide
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| Chemical composition || Silicon dioxide SiO<sub>2</sub>
 
|-
 
|-
 
| Crystal system || Trigonal
 
| Crystal system || Trigonal

Revision as of 01:08, 1 October 2006

Chalcedony
Chemical composition Silicon dioxide SiO2
Crystal system Trigonal
Habit edit me
Cleavage edit me
Fracture edit me
Hardness 7
Optic nature edit me
Refraction index 1.544 - 1.553
Birefringence 0.009
Dispersion 0.013
Specific gravity 2.63 - 2.65
Lustre Vitreous
Pleochroism edit me