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16.4.11: Azul Verdadero

Última actualización

30 oct 2022
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- 16.4.10: Riesling
- 16.4.12: Pezzottaita

gemology
Gemology Project

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Berilo Azul Verdadero
Composición química	Be ₃ Al ₂ (SiO ₃) ₆ Silicato de aluminio y berilio
Sistema de cristal	Hexagonal
Hábito	Prismático
Escote	Pobre, basal
Fractura	Concoidal a desigual
Dureza	7.5
Naturaleza óptica	Uniaxial -
Índice de refracción	1.57 - 1.59
Birrefringencia	0.004 - 0,009
Dispersión	Bajo, 0.014
Gravedad específica	2.69
Lustre	Vítreo
Pleocroísmo	Distinto (tonos de color del cuerpo)

Descubierto en el Yukón, Canadá en 2004. Una aguamarina excepcionalmente azul oscuro, cuyo color es el resultado de una altísima concentración de hierro. A diferencia del berilo Maxixe, el color es fotoestable, lo que significa que es resistente a la decoloración.

True Blue Beryl es un nombre comercial de aguamarina mediana a azul oscuro de Canadá, comercializada por True North Gems.

Enlaces externos

Verdaderas gemas del norte
Estudio mineralógico y geoquímico de True Blue Aquamarine.. (formato pdf)

Enlaces externos

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