Cover of Rocks & Minerals, no 2011/4 with our topaz article.

 2011. T. Praszkier. A New Find of Topaz in the Strzegom Granites, Poland.
Rocks & Minerals, no 86/4.

Screen-shot of R&M web page with featured topaz article.

One of topaz specimens with quartz from Strzegom. Spirifer collection. J. Scovil photo..