Tektite var. Moldavite

This is as good a piece of Moldavite as money can buy. This is from the rarest location: Bezednice. It is known for the "snowflake" look of the pieces. The leading theory suggest this is due to a higher acidic level in the soil (that etched away the glass over millions of years more than the other locations nearby). This piece is absoutely pristine and damage free (hard to find from any location). The color is classic green, highly transparent. The last two pics shows the transparent color with a back light. It weighs exactly 10 grams, which is heavy for this location.

Moldavite is a green tektite. A tektite is an impact glass, created due to the impact of a meteorite with the earth's crust. It is believed that the meteorite that created the Ries Kessel (a massive 15 mile diameter crater), 120 miles away in Germany "splashed," hot material into the atmosphere that cooled as it fell back to Earth. This impact material, landed across a relatively small (10 to 15 square mile) area in the current Czech Republic. This impact event is dated around 15 million years ago. Moldavite miners must dig holes to access this old layer in which the Moldavite is found. Moldavite is typically quite small, with the largest pieces generally available, weighing between 30 to 50 grams (up to 6-7 cm long). Moldavite is valued for its size (larger pieces are much rarer), condition (lack of damage), an attractive green color, and how textured, or "spikey," the surface is.