Difference between revisions of "Larimar"
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Blue pectolite found in the Dominican Republic. | Blue pectolite found in the Dominican Republic. | ||
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+ | ==Acknowledgements and External Links== | ||
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+ | ''Gems & Gemology, Winter 1989 Issue'' [http://www.gia.edu/gemsandgemology/18578/1405/402/back_issue_article_detail.cfm Larimar] | ||
+ | [http://www.larimarsource.com/articlepg1.htm Blue Pectolite from the Caribbean] |
Revision as of 01:41, 31 October 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) |
Blue pectolite found in the Dominican Republic.
Acknowledgements and External Links
Gems & Gemology, Winter 1989 Issue Larimar Blue Pectolite from the Caribbean