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Voudourisita
CaracterÃsticas generales
Fórmula: CdSO4·H2O
Sistema de cristalización: MonoclÃnico
Lustre: VÃtreo
Color: Incoloro
Dureza: 3
Rareza: muy raro
Formación y ambiente
The mineral formed through the oxidation of Pb-Zn ores (galena, sphalerite), and includes an assemblage of secondary Cd minerals. It was found at the type locality for niedermayrite.
Propiedades fisicas
Hábito:
Lustre: VÃtreo
Transparencia: Transparente, Translúcido
Comentarios: NAME ORGIN: In honour of Professor Panagiotis Voudouris (b. 1962), Department of Mineralogy and Petrology, Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens, in recognition of his ground-breaking work on the Lavrion deposits.
Kieserite group
Color: Incoloro
Dureza (Mohs): 3
Tenacidad: Frágil
Densidad: 3,69-3,8 g/cm3 (medida) | 3,69 g/cm3 (calculada)
CristalografÃa
Sistema cristalino:MonoclÃnico
Clase (H-M): m (2/m) - Prismática
Grupo espacial: P21/n
Parámetros de la celda: a=7,6331Å b=7,4581Å c=7,6231Å
Estructura del cristal: β=115,411º
Volumen de unidad de celda: V 391,97Ã…
Z: 4
Difracción de Rayos X:D(hkl) | Intensidad |
---|---|
3,574 | 100 |
4,881 | 65 |
3,226 | 44 |
2,531 | 32 |
3,729 | 26 |
2,319 | 16 |
3,279 | 14 |
Propiedades ópticas
Tipo: Biaxial (-)
Valores RI: nα= 1,58; nβ= 1,624; nγ= 1,64
2V: medida: 61º - 70
Máxima birrefringencia: δ = 0,06
Pleocroismo: Non-pleochroic
Propiedades quÃmicas
Fórmula: CdSO4·H2O
Yacimientos y localidades de interés
Localidades
- Esperanza Mine, Lavrion, Attik?´ Prefecture, Greece - Localidad tipo.
BibliografÃa y más información
- Mineralogical Magazine, 76, 1281-1288
![Ezoic](https://go.ezodn.com/utilcave_com/img/ezoic.png)
Barra lateral
Clasificación
Estado IMA: Approved 2012Nickel-Strunz :
- 7: Sulfatos
- 07.C: Sulfatos (selenatos, etc.) sin aniones adicionales, con H2O
- 07.CB: With only medium-sized cations
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