Difference between revisions of "Template:Larimar"
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| Chemical composition || NaCa<sub>2</sub>Si<sub>3</sub>O<sub>8</sub>(OH) | | Chemical composition || NaCa<sub>2</sub>Si<sub>3</sub>O<sub>8</sub>(OH) | ||
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− | | Crystal system || | + | | Crystal system || Triclinic |
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− | | Habit || | + | | Habit || Aggregate |
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| Hardness || 5 | | Hardness || 5 | ||
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− | | Optic nature || | + | | Optic nature || Biaxial + |
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− | | | + | | Refractive index || 1.59 - 1.63 |
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− | | Birefringence || | + | | Birefringence || 0.028-0.038 |
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− | | Dispersion || | + | | Dispersion || Very weak |
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| Specific gravity || 2.62 - 2.87 | | Specific gravity || 2.62 - 2.87 | ||
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− | | Lustre || | + | | Lustre || Silky |
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− | | | + | | Fluorescence || Yellow or orange (SW-UV) |
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Latest revision as of 17:07, 23 December 2006
Larimar | |
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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 |
Dispersion | Very weak |
Specific gravity | 2.62 - 2.87 |
Lustre | Silky |
Fluorescence | Yellow or orange (SW-UV) |