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Tourmaline : A(D3)G6(T6O18)(BO3)3X3Z
minID: QXR-8FH

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Black Tourmaline from Castro Daire (very rare). Vasco Trancoso collection and photo. Size: 6,5 X 0,8 X 0,7cm. A piece from 1960´s with a textbook termination (see child photo). Very good crystalization from an old local.

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Photo added: 23rd Apr 2009

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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