This museum grade, exceptionally etched Moldavite is in perfect condition and features very deep etching. One of the most compelling Tektites, Moldavite is the naturally water-etched result of a meteoritic impact in what is now 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. 11.64 gms. 1.5" x .6" x 1.3"