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Quartz (Var: Eisenkiesel) : SiO2, Gypsum : CaSO4·2H2O

Copyright © Rafa Muñoz Alvarado
 
 
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Quartz (Var: Eisenkiesel) : SiO2, Gypsum : CaSO4·2H2O

Copyright © Rafa Muñoz Alvarado  - This image is copyrighted. Unauthorized reproduction prohibited.

Crystal 4 cm.Rafa Muñoz collection and photo

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Photo added: 19th Mar 2007