The hyalophane occurrence at Zagradski Potok near Busovaca, Bosnia and Hercegovina.

From: The Mineralogical Record | Date: September 1, 1996| Author: Zorz, Mirjan | Copyright information

Hyalophane specimens from Zagradski Potok near Busovaca, Bosnia and Hercegovina, are huge, lustrous and complexly twinned, giving them a gem-like quality. The west limb of the Busovaca fault zone, formed during Miocene, saw the crystallization of quartz and, later on, hyalophane veins within sericite-phyllite schists as a result of hydrothermal processes. The structures of twins and fourlings of hyalophane are detailed. A description of the associated minerals along with their paragenesis is ...

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