Moldavite belongs to the category of jewel known as “tectites”, which are the only jewels known to have fallen to the earth from the sky. Moldavite (which is named after the river in the Vltava valley of Europe, where it was first discovered) has been used in tools, talismans and jewelry over millennia. Knowing the properties and history of Moldavite can help you distinguish the real one from a fake.
The Color of Moldavite stone
It must be a dark green color, almost the color of moss. If the stone you are seeing has a brighter, more vibrant shade of green, it can be an emerald instead of Moldavite. If the stone you are examining is not green at all, then it is definitely not a real Moldavite.
The Structure of Moldavite stone
We are talking about the physical composition of the stone. While many precious stones, such as quartz, have a crystalline structure, Moldavite does not. In fact, it is classified as having an “amorphous” structure, “amorphous” literally means “formless,” meaning that Moldavite can grow in various shapes or patterns.
Due to its amorphous composition, real Moldavite is difficult to process on a completely smooth, glassy surface. If the jewel in question is the right color, but it is as soft and thin as a piece of glass bottle, it can be a fake.
The Clarity of the Moldavite stone
Just as it is difficult to polish moldavite on a smooth surface, it is also difficult to find a real moldavite that is completely transparent along. Real moldavite is made of silica, but often dotted with impurities such as iron and magnesium, which can make it less transparent than a stone like diamond.
Ask the seller where the stone is from
Moldavite, as stated in the introduction, is a tectite that is only found in the river of the Vltava Valley of Europe, located in what is now the Czech Republic. If the seller claims that the stone was extracted anywhere, except this region, it is almost definitely a fake.
See if the Moldavite is easily scratched or dented
(warning: this can permanently alter or damage the stone).
Real moldavite has a hardness of 5.5 on the Mohs hardness scale, the standard scale for measuring gemstones. A diamond has a hardness of 10, which means that it is practically impossible to scratch; comparatively, a real moldavite is vulnerable to scratches and dents and should be handled with care.
Moldavite is also considered to have healing and mystical powers, and has been used as a natural healing stone for several centuries.
If you think you may be about to buy a fraudulent piece of moldavite, take it to a gemologist. Only this professional will be able to tell you with certainty if the stone is real or a fake.