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]
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[http://www.larimarsource.com/articlepg1.htm Blue Pectolite from the Caribbean]

Revision as of 01:41, 31 October 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
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