Abstract
SMALL, curiously shaped pieces of green, brown, or, more usually, black glass have long been known from certain regions, and have been called moldavites from the Moldau River in Bohemia and from Moravia; australites or obsidianites from Australia; billitonites from the tin-bearing gravels in the island of Billiton, Dutch East Indies; and Darwin glass from Tasmania. They have also recently been found in some abundance in French Indo-China and in the Philippine Islands. In chemical composition they are peculiar in containing a very high percentage of silica (SiO2, 70—89 per cent).
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References
"Les Tectites de l'Indochine." By Prof. A. Lacroix . Arch. Mus. Nat. Hist., Paris, 8, 139, 1932.
NATURE, 129, 932, June 25, 1932.
NATURE, 129, 781, May 28, 1932.
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SPENCER, L. Origin of Tektites. Nature 131, 117–118 (1933). https://doi.org/10.1038/131117a0
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DOI: https://doi.org/10.1038/131117a0
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