DOCUMENTO DE IDENTIFICAÇÃO |
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| Número do documento | ID10192/SP2026 |
| Data de emissão: | 04/03/2026 |
| Gema: | TOURMALINE “PARAÍBA TOURMALINE” |
| Forma e estilo de lapidação: | Pear, Modified brilliant cut |
| Peso: | 1,75 ct |
| Dimensões: | 10,25 x 7,12 x 4,52 mm |
| Cor: | Blue – Green |
| Transparência: | Translucent |
| Comentário | This copper (Cu) and manganese (Mn) bearing tourmaline may also be called “Paraíba tourmaline” in the trade. The name is derived from the Brazilian locality Paraíba, where this gemstone was first mined, however today it may come from a number of localities. The copper and manganese was detected using a spectrometer of UV-VIS-NIR. The geographical origin for this stone has not been determined. Indications of clarity enhancement at the time of testing. |
ID10192/SP2026
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