On the other hand , the Bohemian massif has many quarries where granite , granodiorite and diorite are won for use as decorative building stone .
The Harz Mountains further north in Germany , which are geologically part of the Rhenohercynian Zone , have more ore deposits .
The Bohemian massif has many quarries where granite , granodiorite and diorite are won for use as decorative building stone .
The Harz Mountains further north in Germany , which are geologically part of the Rhenohercynian Zone , have more ore deposits .