Description
A very fine "floater" of the so-called "mud Quartz" from THE classic deposit in Switzerland, Val d´Illiez in Valais canton. Here in Europe, these skeletal Quartz specimens are actually called "Fenster-Quartz" (German word for window), due to the fact that the pyramidal and prism faces have a skeletal form that gives them the appearance of a window. The brownish coloured "mud" inclusions are some kind of pocket clay that was frozen inside of the Quartz as it was crystallizing. Where there are no inclusions, the Quartz crystals are water-clear, and have sharp, glassy surfaces all the way around.