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Elbaite (Var: Cuprian Elbaite) : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18], Quartz : SiO2 | |
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Paraíba, Northeast Region, Brazil A gorgeous blue translucent terminated prismatic crystal of tourmaline measuring 4.9 cm in length is set nicely upon a massive quartz matrix with other much smaller blue tourmalines. The strange color is due to copper. Measures 5.2 x 3.0 x 1.0 cm in size overall. No damage. Ref: MacDonald, D.J. and Hawthorne, F.C. (1995) Cu-bearing tourmaline ... |
| © Dan & Diana Weinrich Minerals | Photo ID: 244584 View Count: 84 |
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São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Well defined and transparent Elbaite crystal, with excellent color, totally natural, more blue on the scepter base. Terminal faces are well defined and with no damage. We would like to emphasize its form because these cuprian Elbaites from Paraíba, well-known for their excellent color, rarely are seen in complete crystals. São José da ... |
| © fabreminerals.com | Photo ID: 159682 View Count: 244 |
Elbaite (Var: Cuprian Elbaite) : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Doubly-terminated 4cm crystal, Jordi Fabre specimen, Munich Show 2009 |
| © J.Ralph | Photo ID: 261971 View Count: 51 |
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São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Excellent crystallization for this variety, well known as "Paraíba" in gemology, whose characteristic is that it is almost unknown in defined crystals. For that reason, the piece must be considered as very unusual. The sample is an irregular prismatic crystal with a neat pinacoidal termination, transparent, bright and of excellent color. This ... |
| © fabreminerals.com | Photo ID: 256978 View Count: 17 |
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São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Excellent crystallization for this variety, well known as "Paraíba" in gemology, whose characteristic is that it is almost unknown in defined crystals. For that reason, the piece must be considered as very unusual. The sample is a doubly terminated floater crystal with very acute terminations with well defined faces, transparent, bright and of ... |
| © fabreminerals.com | Photo ID: 256976 View Count: 12 |
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São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Excellent crystallization for this variety, well known as "Paraíba" in gemology, whose characteristic is that it is almost unknown in defined crystals. For that reason, the piece must be considered as very unusual. The sample is a crystal with an irregular rhombohedral termination, transparent, bright and with an excellent color. This variety is ... |
| © fabreminerals.com | Photo ID: 256981 View Count: 10 |
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São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Excellent crystallization for this variety, well known as "Paraíba" in gemology, whose characteristic is that it is almost unknown in defined crystals. For that reason, the piece must be considered as very unusual. The sample is a doubly terminated floater crystal with very acute terminations of very well defined faces, transparent and with an ... |
| © fabreminerals.com | Photo ID: 256984 View Count: 4 |
Elbaite (Var: Cuprian Elbaite) : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Batalha mine, São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Translucent crystal of the famous Paraiba Blue tourmaline (elbaite with high copper content). The crystal is not terminated. Paraiba tourmalines are hard to obtain because security at the mine ensures all material goes to the lapidaries. Overall size of mineral specimen: 22x6x6 mm. Size of individual crystals: 22 mm. |
| © 2003 John H. Betts | Photo ID: 10808 View Count: 907 |
Elbaite (Var: Cuprian Elbaite) : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Batalha mine, São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Gemmy crystal of the famous Paraiba Blue tourmaline (elbaite with high copper content). The crystal has a three-sided termination. Paraiba tourmalines are hard to obtain because security at the mine ensures all material goes to the lapidaries. Overall size of mineral specimen: 22x4x3 mm. Size of individual crystals: 22 mm. |
| © 2003 John H. Betts | Photo ID: 10841 View Count: 749 |
Elbaite (Var: Cuprian Elbaite) : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Batalha mine, São José da Batalha, Salgadinho, Paraíba, Northeast Region, Brazil Well-defined, transparent crystal of scepter form. Excellent, natural color that is more blue at the base of the crystal. No damage. Cuprian Elbaites from Paraíba are well-known for their excellent color, but are rarely seen in complete crystals. 3.2 × 0.8 × 0.8 cm. Houran Collection. |
| Photo ID: 159428 View Count: 330 | |
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