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16.5.3: Citrina

Última actualización

30 oct 2022
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- 16.5.2: Ametrina
- 16.5.4: Prasiolita

gemology
Gemology Project

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Citrino
Composición química	Dióxido de silicio SiO ₂
Sistema de cristal	Trigonal
Hábito	Prismático
Escote	Pobre
Fractura	Concoidal
Dureza	7
Naturaleza óptica	Uniaxial +
Índice de refracción	1.544 - 1.553
Birrefringencia	0.009
Dispersión	Bajo, 0.013
Gravedad específica	2.63 - 2.65
Lustre	Vítreo
Pleocroísmo	Débil a distinto

Archivo:Citrino rugoso y cut.jpg

Figura $\PageIndex{1}$ : Citrino ovalado facetado sobre Cristales de Citrino Madiera.
Foto cortesía de Barbra Voltaire

El citrino es una variedad amarilla o dorada de cuarzo. La mayoría del citrino disponible hoy en día es amatista tratada térmicamente. Cuando la amatista se calienta a unos 482.2 grados Celsius, se altera a un tono dorado. El citrino ha sido acreditado por curar infecciones del tracto urinario, ictericia y dolencias renales. Esto es obviamente una asociación de color.

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