User:BethCarter

Working notes for Larimar page:

W page states that cobalt impurity leads to blue color of larimar, but has no citation. Numerous sources suggest this is incorrect and that copper, not cobalt, is the cause of the blue color. References include:

• Larimar Source
• Minerals.net
• [http://www.larimarmuseum.com/index.php?option=com_content&view=article&id=20:origin-of-color&catid=5:formacion&Itemid=2
• Winter 1989 issue of Gems & Gemology, GIA publication]