A GEM-QUALITY, typically discoidal, furrowed, deep bottle-green moldavite tektite from the Type Locality in the Moldau River region of the Czech Republic. The backlit photo shows the gemminess of the piece. Moldavites are green natural glass, thought to be formed from meteorite impact melting the local rocks. Ex John Sinkankas Collection, famous collector and author. The piece comes with a Xerox copy of his original 3" x 5" card. 11 grams. 2.9 x 2.5 x 1.8 cm