Difference between revisions of "Template:Larimar"

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| Birefringence || 0.028-0.038
 
| Birefringence || 0.028-0.038
 +
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 +
| Dispersion | very weak
 
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|-  
 
| Specific gravity || 2.62 - 2.87
 
| Specific gravity || 2.62 - 2.87

Revision as of 14:29, 5 December 2006

Larimar
Chemical composition NaCa2Si3O8(OH)
Crystal system triclinic
Habit aggregate
Hardness 5
Optic nature biaxial +
Refractive index 1.59 - 1.63
Birefringence 0.028-0.038
very weak
Specific gravity 2.62 - 2.87
Lustre silky
Fluorescence yellow or orange (SW-UV)