By A Mystery Man Writer
Smoky Quartz from Eurasian Plate
Crystallized quartz hi-res stock photography and images - Alamy
Reference Specimens / Europe / Fabre Minerals
Mineral: Quarz - Bayerisches Nationalmuseum
Mineral: Quarz (Achat) - Bayerisches Nationalmuseum
Minerals.net, Mineral News
Alpine Mineral Museum in Bramberg, Austria
FMF - Friends of Minerals Forum, discussion and message board
Minerals.net, Mineral News
Scholzit – Wikipedia
Mineral: Quarz - Bayerisches Nationalmuseum
Reference Specimens / Europe / Fabre Minerals