Quartz

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A beautiful near "floater" specimen of the so-called "mud Quartz" from a fairly recent find in an Alpine-type deposit in Pakistan. In Europe, these skeletal Quartz specimens are sometimes called "Fenster" (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 colored "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. A very interesting doubly-terminated, multi-crystal specimen of this unusual material. Ex. Brian Kosnar Collection.