Buchite, Porcellanite
Piast mine heap, Piast Mine, Nowa Ruda, Kłodzko County, Lower Silesian Voivodeship, Poland
This is a thin section (normal light, binocular photo) of a composite pyrometamorphic formation sometimes called pyrometamorphic breccia. Most of the section is multi-color, very characteristic buchite with clearly seen vesicular texture. The white rock is porcellanite. The buchite is mainly composed of mullite, a spinel phase (yellow-orange ...
© Łukasz Kruszewski 2019