This is Moldavite, the result of a meteor collision resulted in many pieces washing down the Moldau River in Czechoslovakia.

Collision with Earth caused earth materials to propel  into outer space, where it fell back to Earth in this glassy nugget form.  Mossy green color is the signature for Moldavite.

Considered a high energy stone.

Comes with authentication card

TEKTITES FROM THAILAND

This is another glassy shard that is a result of a meteor impact with Earth (Thailand, to be exact). 

Earth material was propelled into space from the impact, then fell as glassy nuggets or shards like this.

Hand picked from large "strewn field".  Called "tektite", these are black. 

Comes with authentication card. 

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2-3/8 x 7/8" at its widest $14  SOLD

Here is our customer Siraphong from Thailand, sharing his own specimen of tektite obtained locally.  Superb! 

"Tektite" is Greek for "molten", an appropriate name, as tektites are a product of meteor impact with earth where pure quartz sand was present.

 The tremendous heat and pressure of the impact produced a splash effect of the quartz sand and other earth materials as high as outer space, that then fell as fused glass into "strewn fields". 

Most tektites are opaque with smooth, scarred or pitted surfaces. It looks similar to volcanic obsidian but due to the high melting threshold (over 1300 degrees C.) and fractures evident in every molecule of the tektite, it is understood to have been created by a violent impact and propelled some distance. 

Tektites are similar to shale in composition, but have a very low water content of .005% (volcanic material is generally .25% water).

Below are examples of tektites

Strewn fields of tektites are found in Eastern Europe, Thailand, Southeast Asia, Australia and even in the state of Georgia in the United States.

 It has also been found that all these tektites can be associated with nearby meteorite impact points that created them, bearing the same age as the original impact from the meteorite.

 However, where no pure quartz sand was present when a meteorite fell, no tektites were created.

Tektites are found in two distinct shapes:

1. rounded aerodynamic shapes, spheres, tear droplets, dumbbells & disks formed closer to ground zero of the impact.

2. Layered or "Muong-Nong" type found only in SE Asia are blocky, fragmental shapes with layering and variations in bubble content, understood to be further from ground zero of impact. Some larger pieces have a surface like lava or "breadcrust" lava bombs.

A natural nugget of Moldavite (left) and awesome carvings done from Moldavite.

Moldavite is a member of the tektite family. Moldavite is believed to be splash material that became highly airborne, possibly to outer space, where it fell into the Moldau Valley in Czechoslovakia from a meteor impact in Germany 15 million years ago which created the Ries Crater. 

This impact instantly heated the surrounding material to over 1720 degrees C., lightning being the only other phenomena that can heat pure quartz sand to that temperature. 

Moldavite has been called the rarest mineral in the world, rarer than diamonds, rubies or emeralds. Its lovely clear mossy green color is due to the existence of aluminum oxide. 

As the only tektite with gem quality clarity and beauty, it is often used as faceting material for gemstone jewelry. 

A more technical breakdown is provided upon request with a purchase.

According to legends of the Holy Grail, moldavite was considered holy emeralds that fell from the heavens. 

It was also used in mid European areas centuries ago as a good luck talisman, for adornment and for bartering.

We have a more comprehensive card available on the metaphysical aspects for those interested, upon purchase of moldavite.