Václav Procházka

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Questions related from Václav Procházka

Where is the water in granites?

I am interested in clay minerals formed in plutonic rocks (mainly granites) prior to obvious weatherig processes. If we look at wet analyses, there is mostly 1 wt. % "H2O+" (even in samples from...

02 December 2017 3,678 6 View

"Hiwaya stone" - meteorite?

Una questión a mineralogos y expertos de meteoritos suramericanos: Sabe alguien qué son las piedras "Hiwaya" que se venden en Cusco (Perú) como "meteoritos"? Son oscuros, pesados, frágiles y un...

01 January 1970 320 0 View