(Steinbruch Grub, Rinchnach, Regen, Bayerischer Wald, Niederbayern, Bayern, Deutschland)
Active quarry in granite, hosting a rose quartz-bearing pegmatite lens.
Located near Grub, about 3.5 km SE of Rinchnach.
Note: mineral list is far from complete; comprehensive article is planned.
Refs.:
- Der Aufschluss 1980, special edition no. 31, 59
- S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990