Tektites are small, pitted, pebble-like objects made of green - black
high quality glass which are naturally distributed over certain regions
of the Earths surface. Tektites remain one of the most mysterious
rock types on Earth, which have aroused curiosity for many people of several
generations. Dr. J. A. OKeefe stated in the foreword of his Tektites
book (1963): It seems to
me that the most interesting stage in any investigation is the one in which
people are still struggling to understand what sort of thing they are dealing
with.
Tektites exhibit a number of meteoritic features including ablation and
aerodynamic deformation, flight orientation, distribution within a certain
strewn field, sharp difference from native rocks, and so on. However, they
dont have cosmic ray tracks and Al - Nd isotopic characteristics of
outer space or lunar origin. Although Dr. J. D. OKeefe and Dr. D.
R. Chapman of NASA
and others have found some evidences showing the lunar origin of tektites,
melting and jetting of terrestrial rocks, caused by a large meteorite impact
on Earth, are widely regarded as the mechanism of tektite formation.
Collection of tektites are critical to solve the scientific riddle of
their origin.Tektites are an important part of rock collections in the worlds
top natural history museums, such as the British Museum, American Museum
of Natural History, Smithsonian Museum and Australian Museum. A tektite
researcher usually tries to collect as many samples as possible. Dr. H.
O. Beyer
of the Philippine possessed more than a half millions tektites in the late
1950s (H. H. Nininger, 1972). NASA bought a part of Beyer's collection in
the 1960s. H. H. Nininger collected 50,000 Indochinites from South Vietnam
and found the rare plastic deformed tektites (H. H. Nininger and G. I. Huss,
1967). Dr. D. R. Chapman of the NASAs Ames Research Center gathered
several tons of tektites (Voyage!, 1998, No.5). His massive collection and
research notes are in the Smithsonian Institution now (recent email from
L. Varricchio).
The outer appearance of tektites is mostly shining, odd and lovely. It
is surprising to see some tektite shapes look similar to common things:
buttons, dumbbells, teardrops, discs,
spheres, and boats. Their sculptured surfaces, commonly
with flow lines, suggest they were not man-made, instead they apparently
entered or re-entered the Earths atmosphere from
space. Tektites are not only valuable samples for study, they also represent
natural re-entry objects which can provide a lot of aerodynamic
information about atmospheric entry. Unlike a missile, the manned space
shuttle is always designed with a blunt end forward, which resembles an
oriented teardrop tektite with its blunt end earthward while falling! We
can learn a lot more by studying the shape, surface sculpturing and deformation
of tektites, which could provide some significant information for further
space exploration.
People of various regions started to collect tektites many years ago. Today, some tektites, such as Moldavites and Georgiaites, are regarded as rare gemstones or valuable scientific samples and sold for $3-10/gram. Some people who believe in crystal healing can feel the great energy a tektites contains! In the past decade, more than ten tons of tektites (mainly Indochinites and Philippinites) have been collected in Asia to make jewelry. It is much easier to obtain a tektite than a meteorite. Some people may falsely think that tons and tons of tektites are instantly available from several countries. We have been involved in tektite collecting for over ten years. We know just how scarce those odd objects are. At some places, where tektites used to be casually visible and penniless, we can find only a few broken pieces in one whole day.
Tektites found so far have been on the Earths surface for a long
period of time. Many of them have been eroded by rivers, ground water or
sea water, losing their surface features. A large percentage of them are
used to make jewelry. Still, many pieces are damaged during handling and
shipping. Therefore, large and complete tektites are scarce, and those with
special
original or aerodynamic significance are even rarer. Some meteorite collectors
do not collect tektites because tektites are relatively common. As a matter
of fact, collecting tektites is somewhat like collecting quartz crystals.
To find a piece of quartz worthy of one dollar or less is easy. To get an
outstanding piece of museum-quality, which can be many thousand dollars,
is difficult! In short, tektites are beautiful, unusual, old, rare and
important scientifically
.They will become a popular collectible worldwide like rock crystals among
advanced collectors or beginners, museums and researchers.
Copyright © Great Wall Consulting & Trading, 1998