Some tektite researchers continue to strongly disagree with the popular terrestrial-impact theory; they suggest that tektites are more likely volcanic ejecta from the Moon that landed on Earth as a meteorites.
From the 1950s through the 1990s, NASA aerodynamicist Dean R. Chapman and others advanced the "lunar origin" theory of tektites. Chapman used complex orbital computer models and extensive wind tunnel tests to support the theory that the so-called Australasian tektites originated from the Rosse ejecta ray of the large crater Tycho on the Moon's nearside. Until the Rosse ray is sampled, a lunar origin for these tektites cannot be ruled out.
During the 1980s and 1990s, researchers such as O’Keefe of NASA, astronomer and long-time tektite researcher Hal Povenmire, and petrologist Darryl Futrell claimed that the slow way in which tektite glass formed (called "fining"), and the volcanic features they claimed to have observed within some layered tektites, couldn't be explained by the terrestrial-impact theory.
Unlike all terrestrial impactite glasses, tektites are nearly free of internal water similar to lunar rocks. Also, Stokes' Law does not permit the formation of tektites during impact while the velocity needed to form certain "flanged" tektites is more compatible with a lunar origin rather than a terrestrial origin. O'Keefe suggested explosive, hydrogen-driven lunar volcanoes as the original source of tektites. Note: Since the unmanned U.S. Clementine lunar mission of the 1990s, vast areas of pyroclastic (volcanic) glasses have been identified, notably in the area of the Aristarchus plateau. There is also evidence of interstitial granitic material (akin to the acidic tektites in chemistry) in some lunar highland samples which bolsters the lunar-origin theory. Lunar Orbiter spacecraft images reveal fields of volcanic domes that may indicate deep-seated, high-silica eruptions on the Moon, possible sources of the tektites. (These domes are similar to the Mono Lake craters of California; ironically, Mono obsidians resemble some layered tektites).
A part of one of the rock samples collected on Apollo 12, lunar sample 12013, has a composition which is remarkably similar to some tektites. It is especially similar to high-magnesium javenites (part of the Australasian field). Sample 12013 is inhomogeneous in that it is composed of two types of materials, light and dark. The light, acidic portion is composed of up to 71 percent silicon dioxide. The dark portion resembles KREEP rocks. The abundances of 20 of 23 elements tested from the acidic portion of the sample showed a striking similarity to high-magnesium tektites. The major elements matched well; the minor and trace elements did not. However, other lunar samples matched some micro tektites very well.
Now Only $420.00 USD with Freight/Insurance Included nucow.com Item #1201 | 
