COLLECTION OF THAI PREHISTORIC BLACK INDOCHINITE TEKTITES. Note:" Tektites are natural formations of glass that have fallen back to earth from outside the earth's atmosphere following comet/large meteorite impacts. This variety of tektite is know as an indochinite due to the believed impact site near Thailand some 750,000 years ago...". (7) - Largest: 3 7/8 in. long. Estimate $100-200
