With pronounced scalloping along animated contours, all surfaces are frosted, the result of epochs of sandblasting by desert winds.
101 x 87 x 39 mm. (4 x 3½ x 1½ in.) and 353.4 g. (¾ lbs)
Natural glass formed as the result of terrestrial sandstone liquefying following a cataclysmal impact with an asteroid millions of years ago.
Tektites are pieces of silicate glass whose origin was long... read more