Most tektites have a black colour at first sight. Thin cuts may appear brown or yellowish. The moldavites have a beautiful, rare green colour that is uncommon among tektites. Another type of green is the Urengoy and Georgiatektites. There are only three pieces. Transparency is another way to highlight the green color in moldavite. How to tell if moldavite is real?
These colors are recognized by moldavites
Pale green (also known as water green, apple green moldavites)
Bottle green (the most popular)
Poisonous (acid) green
Olive green and intensely bottle green are my favorite colors of moldavites. They are common moldavite colours. The rarest poisonous green moldavites, however, are extremely rare. These two-coloured moldavites can also be found, and they are extremely valuable. Jewelry is often made from ground or polished moldavites that have lighter shades. They are transparent and produce the best results.
Colors of moldavites depend on where they are located
They are most commonly found in South Bohemia as bottle green and light-colored moldavite. The most common are the pale green ones (found around Radomilice), olive and brownish ones (e.g. Dobrkovska Lhotka Zatacka. South Bohemia has a very low number of poisonous green moldavites.
Moravian mouldavites are mostly olive green or dark brown.
What is the reason for the color of moldavites
Chemical coposition is what determines colour and transparency. The colour is influenced most by the iron content (Fe 2, Fe 3), and manganese(Mn 2). The main influence on the green colour is bivalent iron. Trivalent iron’s content is what gives moldavites their brown color. The moldavite will turn browner if it has a greater proportion of Fe III/Fe I.
Low levels of titanium can lead to transparency.