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16.10.01: Amazonita

Última actualización

30 oct 2022
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- 16.10: Feldespato
- 16.10.02: Andesina

gemology
Gemology Project

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Amazonita
Composición química	Feldespato microclino
Sistema de cristal	Triclínica
Hábito	Masiva
Dureza	6-6.5
Naturaleza óptica	Biaxial -
Índice de refracción	1.522-1.530
Birrefringencia	0.008-0.010
Dispersión	Bajo
Gravedad específica	2.56
Lustre	Vítreo

Archivo:Amazonite xls.jpg

Figura $\PageIndex{1}$ : Microclina (también conocida como Amazonita) con albita

Amazonita es un nombre comercial para microclina (K-feldespato) y tiene un color verde a azul-verde.

Figura $\PageIndex{2}$ : Cabujones de Amazonita

La microclina tiene la misma composición química (KalSi ₃ O ₈) que la ortoclasa, pero crece como cristales triclínicos opuestos a la ortoclasa monoclínica.

Fuentes

Gemas Sus Fuentes, Descripciones e Identificación 4ª Edición (1990) - Robert Webster (6a ed.)
Piedras preciosas del mundo, 3ª edición rev y exp (2006) - Walter Schuman ISBN 1402740166

Fuentes

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