Keyword "TOPAZ QUARTZOLITE" in:

Topaz quartzolite (greisen) in North Bohemia – potential source of the natural abrasive
Petr Martinec, Petr Hlaváček, Libor Sitek, Josef Foldyna, Josef Klomínský, František Veselovský, †Ferry Fediuk, volume 56, issue 2, 2023, pages 119–127
pdf (6.67 MB)

Topas quartzolite (greisen) near Chrastava in Northern Bohemia – metallogenic indicator of the W-Sn mineralization
Klomínský,J., Fediuk,F., Veselovský,F., Schovánek,P., Jarchovský,T., Táborský,Z., volume 37, 2004 (GRR for 2003), pages 112–114
pdf (0.29 MB)