Bergkristall – Grieswies, Rauris, Salzburg, Austria
 Former Ludwig Fruth Collection via Clemente 1968
 An impressive, crystal-clear rock crystal with a beautifully recrystallized base. An all-around wonderful crystal with a remarkable length of 19.7 cm.
 Rauris is known for its diverse rock crystal deposits. Almost all of the deposits are located in the core zone of the Hohe Tauern National Park. For several years now, collecting minerals here has only been permitted with a special permit. As a result, minerals from Rauris are rarely offered for sale. The rock crystal comes from the collection of Josef Kolb, who regularly searched for minerals there since the 1970s.