This museum grade, exceptionally etched Moldavite is in perfect condition. At 2 inches across it features very deep etching across the face. One of the most compelling Tektites, Moldavite is the naturally water-etched result of a meteoritic impact in southern Germany that occurred about 14.7 million years ago, forming the Nördlinger Ries Crater. It is approximately 77% silica. Besednice, Český Krumlov District, South Bohemia, Czech Republic. 20.08 gms. 2" x .5" x 1.6"