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Topic: Tektite


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In the News (Tue 1 Dec 09)

  
  Tektite Information - Articles on Tektites
Tektites are made of a glass which melts at a far higher temperature and it is far more viscous.
Tektites are found sometimes as irregular blobs and angular fragments, but often they are clearly a splash form of one type or another.
Tektites are not usually smooth, they are usually pitted or grooved or a combination of both.
www.meteorite.com /tektites/index.htm   (1778 words)

  
  TEKTITE,   (Site not responding. Last check: )
Tektites typically have a high silica content and an extremely low water content.
In Europe a strewn field with generally greenish tektites called moldavites (named for the Moldau, or Vltava, River) lies in Moravia and Bohemi (within the Czech Republic) and in parts of Bavaria (Germany) and Austria.
North American tektites include fl bediasites from Texas (named from a group of Native American in that region) and greenish georgiates from Georgia.
www.history.com /encyclopedia.do?articleId=223826   (342 words)

  
  Tektite - Wikipedia, the free encyclopedia
Tektites are among the "driest" rocks, with an average water content of 0.005%.
The age of moldavites, a type of tektite found in Czech Republic, was determined to be 14 million years, which agrees well with the age determined for the Nördlinger Ries crater (a few hundred kilometers away in Germany) by radiometric dating of Suevite (an impact breccia found at the crater).
Be in tektites from the relatively young Australasian strewnfield are, according to researchers, an indication of terrestrial origin.
en.wikipedia.org /wiki/Tektite   (2091 words)

  
 GemRocks: Tektite
Outer surfaces of tektites range from fairly smooth to rough, and are commonly grooved, and the surfaces of many tektites can be seen to have undergone natural etching, apparently having been attacked by humic acids in the soils.
Considering the general characteristics of tektites and most of the pieces I have seen fashioned from them, my feeling is that their primary appeal is usually based on their anticipated value as conversation pieces.
In addition, well into the 20th century, tektites in general were rather frequently referred to as glass meteorites or as "moon splash" by romanticists and even by some scientists.
www.cst.cmich.edu /users/dietr1rv/tektite.htm   (1193 words)

  
 Tektite
Tektites exhibit a number of meteoritic features, including ablation and atmospheric melting, flight orientation, distribution on a certain strewn field, sharp difference from native rocks, so on.
The tektites we collect are from Maoming City, Guangdong Province in south China, with K-Ar isotopic age of around 700,000 years.
Although there are many tektites from several countries available on the market, top-quality pieces are scarce.Tektites found in south China have been on the surface for 700,000 years.
www.greatwallct.com /tektite.htm   (557 words)

  
 MiGem - Tektite
Tektite is a natural glass thought to have been formed from meteorite impact melting the local rock.
These are a type of Tektite that resemble lava stones.
Tektite Rough nuggets measuring 6.5x7.5 to 10x12 mm in diameter, 16" strands.
www.migem.com /Categories/Tektite/tektite.htm   (39 words)

  
 Thaigem.com | Info Center | A-Z Gemstones | From Gemology To Mythology Learn More About Tektite At Our A-Z Gemstones   (Site not responding. Last check: )
Tektite was the name given by Edward Suess who was born in London in 1831.
Tektite glass looks similar to Obsidian glass, which is a result of volcanic lava coming in contact with water, but can be differentiated by color and chemical composition.
Tektites and associated impact melted rock are found in only a few regions on Earth (called Tektite strewn fields) and are, in most cases, associated with young impact craters on or near land.
www.thaigem.com /a-z_gemstones/dis_Tektite.asp   (535 words)

  
 Tektite Fury
Perhaps tektites are merely those rare high velocity pieces that "ride" the expanding debris and a RAREfaction formed in the surrounding atmosphere by the extremely energetic impact, and are thus formed under only "right initial conditions" with appropriately located candidate terrestrial source materials.
The dynamic pressure is proportional to the density of the medium and the square of the speed at which the tektite passes into the medium.
If debris happens to strike the tektite body with even a glancing blow (and relative speed of collision much less than one kilometer per second) there is likely to be fragmentation of the tektite mass.
home.comcast.net /~c_shipbaugh/TektiteFury.html   (1817 words)

  
 Tektite Definition   (Site not responding. Last check: )
Tektites (Etymology: Greek tektos, "molten") are pieces of glass formed when a large meteorite strikes the Earth.
Tektites and associated impact melted rock are found in only a few regions on Earth (called tektite strewn fields) and are, in most cases, associated with young impact craters on or near land.
Tektites are similar to shale in composition and have SiO2 contents that range from 68-82%.
www-phys.llnl.gov /tektite/tektite_definition.html   (323 words)

  
 tektite
Small, dark, glassy spheres or aerodynamically shaped buttons formed from molten rock ejected probably as a result of an asteroid or comet impact with silicon-rich rocks on the surface.
Tektites are found scattered on Earth's surface in several major locations, known as strewn fields.
The oldest known tektites, with ages of 33 to 35 million years, are the bediasites, found in Texas and named after the local Bedias tribe, and georgiaites, named after the state where they occur.
www.daviddarling.info /encyclopedia/T/tektite.html   (242 words)

  
 Moldavite Tektite & Meteorite Colored Gemstone Information sheet ~ PGR Gems
Tektites may be fused glass that formed during an impact of a meteor with layers of rock on the Earth's surface.
Tektites occur in broad bands, or strewnfields, in specific localities in different parts of the world.
The odd and diverse chemistry of the tektites could be a result of unique meteorites hitting unique rock types with the combinations producing particular effects.
www.pgrgem.com /color/datasheets/pgrmold.html   (1306 words)

  
 EQUIPPED TO SURVIVE (tm) - LED Flashlight Reviews - Tektite, C.Crane Co.
Tektite, known for its dive and industrial flashlights, makes a diverse and growing number of LED flashlights.  C.
Tektite includes a fl rubber shroud that slips over the head to block light emissions from the sides, which can be annoying at times.  The interior has four tabs that catch the ridges in the head to keep it from slipping and the exterior is textured for better grip.
Tektite lights are made in the U.S. and come with a limited lifetime warranty.
www.equipped.com /led_lights6.htm   (1204 words)

  
 Tektite flashlights - Look and Feel   (Site not responding. Last check: )
The main difference between the basic models and the “top of the line” models is that the base models are usually made of a very heavy-duty polycarbonate while the “top of the line” versions are made of machined aluminum.
Below is a picture of the TekTite LS-4 as I received it from the manufacturer with 3 D-cell batteries.
TekTite LS-4 — Notice the large white light, smooth, round beam pattern and high output compared to the Maglite.
www.light-edge.com /lookandfeel.asp?manuf=Tektite   (344 words)

  
 Review Of The Tektite Problem
Tektites are small glassy stones with drop-like and button-like shapes.
Just about everyone believes that tektites are once-liquid droplets of rock that were solidified in flight.
Those who believe that the tektites were splashed all the way from the moon by meteor impacts have not given up yet.
www.science-frontiers.com /sf025/sf025p08.htm   (247 words)

  
 moldavite and tektite   (Site not responding. Last check: )
Tektites are a class of small, natural, glassy objects found on the earth's surface and associated with meteorite impacts.
The extremely high temperatures and enormous pressures generated when a large meteorite, comet, or asteroid hits the earth melt the rocks at the site producing masses of molten droplets that are blasted in and out of the earth's atmosphere.
Tektites are found in relatively few areas of the world.
www.infinitecosmos420.com /moldatektite.html   (251 words)

  
 Tektite Information
While other types of meteorites were seen as they streaked across the sky and later found on the ground, history shows no record of tektites associated with the appearance of a meteor.
The prevailing theory for quite a while was that tektites were the result of a huge meteoroid or asteroid collision with the moon; according to this theory, molten debris from the collision was thrown so forcefully off the moon that it eventually solidified and was drawn by gravity down to the Earth's surface.
Most tektites on the market are from China and moldavites are from Czechoslovakia.
www.mwweb.com /multifacet/info/tektites.htm   (158 words)

  
 Review: Tektite Avalanche 6, Sino Union Starlite 213R and Photon Micro-Light LED flashlights
They use the same bodies as Tektite's conventional-globe flashlights, but the LED lamps are well integrated and the result doesn't look like a retrofit job.
Tektite allege that the three AA alkalines included with the Avalanche 6 will "power the light for well over 15 hours and continue to give off usable light for another 40 hours".
Tektite sell headband and helmet strap rigs that let you attach their other small flashlights to your head.
www.dansdata.com /ledlights5.htm   (5355 words)

  
 Carter Review - Tektite Trek2 LED Flashlight
The test unit was a used Tektite Trek2 LED flashlight with the word "Scouts" embossed on the body.
When compared side by side to another Tektite Trek2 with fresh batteries, there is an obvious drop in light intensity.
The Tektite Trek2 is not only suitable for today's scouting needs, it is the ideal flashlight for anyone.
www.funddealernet.com /carterledtektite   (771 words)

  
 The Hardware Maniac - Tektite Expedtion Star LED flashlight torch.
The Tektite products are very high quality and should be on your shopping list if you or someone you know is looking for an LED flashlight.
Tektite claims 15+ hours at full intensity, dropping to a much dimmer output after that for another 50 hours.
Tektite has an interesting cost analysis of the Expedition Star on their site, it's based on a usage of 7 hours a week and compares it to an incandescent flashlight of the same size.
www.hardwaremaniac.com /reviews/tektite/expeditionstar01.htm   (1444 words)

  
 Icgems.com Guide to Gemstones Varieties, Natural Tektite
Tektites (Etymology: Greek tektos, "molten") are pieces of glass formed when a large meteorite strikes the Earth.
Tektites and associated impact melted rock are found in only a few regions on Earth (called tektite strewn fields) and are, in most cases, associated with young impact craters on or near land.
Tektites are similar to shale in composition and have SiO2 contents that range from 68-82%.
www.icgems.com /gemstones/varieties/tektite.html   (454 words)

  
 Profile of a Tektite Researcher
Tektites are small glassy natural objects of uncertain origin found on Earth, which have made at least one trip through the atmosphere.
Tektites are found in groups with similar characteristics in fields or areas called strewn fields.
The second theory is that tektites are Lunar Obsidian the result of lunar volcanic ejecta, which escaped lunar gravity and fell onto the Earth.
www.astronomytoday.com /astronomy/interview3.html   (1736 words)

  
 tektite - HighBeam Encyclopedia   (Site not responding. Last check: )
They are found in limited areas on the earth's surface called strewn fields (in contrast to meteorites, which show a random distribution over the whole earth).
Tektites, originally named by Eduard Suess are usually given a name derived from the region in which they are found; moldavites (from the Vlatava, or Moldau, River in the Czech Republic), bediasites (from the territory of the Bedias Native Americans in Texas), indochinites, philippinites, australites, javanites, and Côte d'Ivoire tektites are the principal groups.
Another theory suggests their origin to be through the fusion and ejection of terrestrial material by the impact of giant meteorites or comets on the earth; the moldavites and the Côte d'Ivoire tektites have been linked with such impacts, but the source of the remaining tektite groups is still uncertain.
www.encyclopedia.com /doc/1E1-tektite.html   (305 words)

  
 Tektite Expedition and Trek flashlights from 4 to 60 white LEDs.
Tektite Expedition and Trek flashlights from 4 to 60 white LEDs.
These rugged white LED flashlights, strobes, and marker lights are highly acclaimed worldwide by scuba divers, mountaineers, fire fighters, military, industrial, and other demanding customers.
TEKTITE buys only premium quality LEDs from the world's top quality manufacturers.
www.theledlight.com /Tektite.html   (130 words)

  
 Flashlight Reviews and LED Modifications
The Excursion LS4 is made by Tektite and is the first commercially made Luxeon III LED personal illumination device I have seen.
Tektite is still one of the few companies who utilize this optics system which results in a tighter collimated beam than the standard Lumileds optics that usually accompany the Luxeon Star LEDs.
The only thing that is missing is a regulator circuit, but with the long battery life already provided by the 3-D cells as compared to an incandescent light using the same power source, a regulator would add just another possible point of failure.
www.flashlightreviews.com /reviews/tektite_excls4.htm   (982 words)

  
 Tektite FAQs   (Site not responding. Last check: )
One possibility is that the atmosphere itself is blown out by the impact and the tektites ride along in the tubulence.
There are several extremely bright, perceptive and highly respected planetary scientists who maintain that tektites are lunar in origin and that the craters associated with them either "connate" or coincidental.
I believe I fairly state that the consensus of the vast majority of the planetary science community is that tektites are terrestrial impact melt.
www-phys.llnl.gov /tektite/faq.html   (652 words)

  
 AllaKhazam's Magical Realm - Your Everquest Community
Tektite makes the sound of grinding rocks as he moves his mouth.
Tektite can be found at +2357 / +2431, was really easy used a Cloudy Potion (sold at vender) to get in.
Tektite, heart of ice, Unholy coldstone, Sulfurstone and I think jade magma too.
everquest.allakhazam.com /db/item.html?item=3534   (666 words)

  
 Tektites   (Site not responding. Last check: )
Tektites are made of glass--natural glass, not man-made glass.
Tektites are found only in a relatively few areas of the world.
Tektites have approximately the same chemical composition as granite or ocean bottom sediments--the common rocks of the Earth's crust.
www.alaska.net /~meteor/Tektite.htm   (239 words)

  
 Nikkei Heritage: EVICTION from Terminal Island
Needing to test equipment, food preferences, crew complement and procedures in conditions similar to those that might be encountered on long-term space missions, an undersea habitat replicating Skylab in size and shape was created by NASA in collaboration with the Department of the Interior, General Electric and the U.S. Navy.
In 1970, Tektite II was placed 52 feet underwater in a remote corner of beautiful Great Lameshur Bay of St. John Island in the U. Virgin Islands.
The project’s primary mission was to gather data on operations, living conditions and interpersonal relations in cramped quarters surrounded by a hostile environment.
www.njahs.org /nh/fvxin4.html   (830 words)

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