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Reference Specimens / Europe / Fabre Minerals
Mineral: Quarz - Bayerisches Nationalmuseum
Scholzit – Wikipedia
FMF - Friends of Minerals Forum, discussion and message board
Alpine Mineral Museum in Bramberg, Austria
Crystallized quartz hi-res stock photography and images - Alamy
Mineral: Fasergips - Bayerisches Nationalmuseum
Mineral: Quarz (Achat) - Bayerisches Nationalmuseum
Mineral: Quarz (Achat) - Bayerisches Nationalmuseum