Ages for Quartz at Starý Martin Adit (Stara Martinka Mine; Martin Adit; Martini Adit; Alter Martinstollen), Steinknochen Area (Lux Vein), Krupka (Graupen), Krušné Hory Mts (Erzgebirge), Ústí Nad Labem Region, Czech Republic

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 411Ma - 236Ma at this locality