Criolita

23/10/2013 394 Palabras

CriolitaCriolitaGeneralCategoríaMinerales halurosClase3.CB.15 (Strunz)Fórmula químicaNa3AlF6Propiedades físicasColorNegro parduzco, pardo rojizo, incoloro, gris, blanco.RayaBlancaTransparenciaTransparente a translúcidaSistema cristalinoMonoclínicoDureza2,5-3Peso específico2,9Densidad2,98 g/cm3 Fluoruro de aluminio y sodio, Na3AlF6, monoclínico, de peso específico 2,9, dureza 2,5, incoloro o blanco y de brillo vítreo.

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