The most common tektites are found in four major strewn fields: Australasian, Central European (Moldavite), Ivory Coast, and North American (Bediasites and Georgiaites). Among these, the Australasian tektites are the most abundant and widely distributed, covering parts of Southeast Asia, Australia, and the Indian Ocean. Moldavites, originating from the Central European strewn field, are highly prized for their unique green color and are primarily found in the Czech Republic. The Ivory Coast tektites are less common and are associated with the Bosumtwi crater in Ghana. North American tektites, including Bediasites and Georgiaites, are found in Texas and Georgia, respectively, and are linked to the Chesapeake Bay impact structure.
These tektites are formed from terrestrial debris ejected during meteorite impacts, which then re-enter the Earth's atmosphere and solidify into glassy objects. Their composition typically includes silica, alumina, and other trace elements, which vary depending on the source material and impact conditions. The study of tektites provides valuable insights into impact processes and the geological history of the Earth.
For further reading, refer to publications from the Earth and Planetary Science Letters, the Journal of Geophysical Research, and books like Tektites: A Cosmic Enigma by John A. O'Keefe. Additionally, resources from professional organizations such as the Meteoritical Society and reports from geological laboratories offer in-depth analyses of tektite formation and distribution.