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. This pendant is artfully framed in .925 Silver (Sterling) ready to adorn your favorite chain. Chlum, Benešov District, Central Bohemia, Czech Republic.1" x 1" x .5", 10.73 grams.