Moldavite, a rare green gemstone, formed over 15 million years ago from the intense heat of an asteroid impact. Primarily found in the Czech Republic, this natural glass, also known as Bouteille Stone, is a prized gem in both jewelry and mineral collections.
Its distinct color, bubbles, and flow lines give it a unique look, making it a favorite among collectors and those in the spiritual community. However, fake moldavite is common, so buyers should be extremely careful when buying moldavite.
Formation and Properties
Moldavite was born from the heat and force of a large asteroid impact that melted terrestrial rock and ejected molten material into the air. The impact occurred in what is now Germany, specifically the Ries Crater.
As the material cooled, it solidified into amorphous glass, creating moldavite. This green-to-brown glass features characteristic bubbles, flow lines, and inclusions of lechatelierite, a mineraloid formed by extreme heat events like asteroid impacts. These features help identify genuine moldavite, which has a Mohs hardness of 5 to 5.5 and a vitreous luster.
Varieties and Grades
Moldavite comes in different grades based on its clarity and texture. The highest quality, known as museum-grade moldavite, is highly transparent with minimal inclusions and features intricate surface textures.
Common-grade moldavite, on the other hand, may be more opaque and contain more internal features like bubbles or inclusions. Rough specimens often have a natural, pitted surface, while faceted moldavite may be cut to enhance its beauty.
These variations in quality and appearance make moldavite a diverse gem, with collectors seeking specific characteristics that enhance its uniqueness.
Moldavite in Jewelry
Although moldavite’s extraterrestrial origin makes it a popular gemstone for jewelry, it is relatively soft and brittle, best suited for items like earrings and pendants that experience minimal wear.
Moldavite can be faceted or left as rough specimens, which are commonly wire-wrapped for jewelry. High-quality pieces are rare, especially in today’s market, due to the depletion of moldavite sources in the Czech Republic.
Beware of Fake Moldavite
With growing demand, fake moldavite—often green glass—is commonly sold online. Buyers should be aware of imitations, as genuine moldavite typically shows visible bubbles and inclusions. Always examine the gem carefully and seek trusted sellers.
In summary, moldavite’s fascinating cosmic origin, unique appearance, and rarity make it a prized gem. However, due diligence is required to avoid counterfeit stones, especially when purchasing online.
