Description
Genuine Moldavite – Translucent Green Tektite from the Czech Republic
This Moldavite specimen is a genuine translucent green tektite formed by a prehistoric meteorite impact event in Central Europe. Carefully selected for its natural shape, colour and surface texture, the exact specimen shown in the photographs is the piece you will receive. Please refer to the images for full sizing details and accurate scale.
This meteorite-related specimen includes a Certificate of Authenticity lifetime guarantee generic card confirming that it is authentic Moldavite from the Czech Republic.
Classification – Tektite Linked to the Ries Impact Event
Moldavite belongs to the tektite family, a group of natural silica-rich impact glasses formed when a large extraterrestrial body strikes the Earth. It was created approximately 14.7–15 million years ago during the Middle Miocene epoch as a direct result of the Ries meteorite impact in present-day Bavaria, Germany.
Meteorite Association: Ries Impact Structure
Geological Stage: Middle Miocene
Approximate Age: 14.7–15 million years
Material Type: Tektite (Impact Glass)
Primary Strewn Field: Bohemia and Moravia, Czech Republic
Composition: Silica-rich glass (SiO₂ with aluminium, potassium, iron and trace elements)
During the impact event, immense temperatures and pressures melted surface rocks. Molten material was ejected hundreds of kilometres into the atmosphere, cooling rapidly in flight before falling back to Earth over what is now the Czech Republic.
Moldavite is one of the very few tektites confidently linked to a specific, well-studied crater structure, making it highly significant in planetary geology.
Geological Formation & Depositional Environment
The Ries crater measures approximately 24 kilometres in diameter and formed when a high-velocity meteorite struck sedimentary and crystalline rocks. The extreme thermal energy generated silica-rich melt droplets that were propelled beyond the crater zone.
These molten droplets travelled through the atmosphere, acquiring aerodynamic shapes before landing primarily within the Bohemian Massif. They became incorporated into fluvial and sedimentary deposits of Miocene age, later exposed through natural erosion.
The distinctive green colour of Moldavite results from trace iron content within its glass matrix. Unlike volcanic glass such as obsidian, Moldavite’s chemical composition and isotopic signatures confirm its extraterrestrial impact origin rather than volcanic processes.
Morphology & Notable Features
Moldavite is especially prized for its intricate natural surface textures and sculpted appearance. Typical morphological characteristics include:
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Deeply etched grooves and ridges
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Irregular, elongated or drop-like forms
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Wrinkled, pitted surfaces from atmospheric cooling
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Internal bubbles and flow lines
Surface textures developed both during rapid atmospheric solidification and through subsequent chemical weathering in sedimentary environments. Conchoidal fractures are common where the glass has broken, consistent with its vitreous structure.
Colour typically ranges from olive green and moss green to deeper forest tones. Transparency varies from translucent to semi-transparent depending on thickness and internal bubble concentration. When held to light, thinner areas display vivid green translucency characteristic of high-quality Moldavite.
Scientific & Collector Significance
Moldavite is a distinguished member of the tektite family, separate from other impact glasses such as Libyan Desert Glass and Australasian tektites. Its confirmed link to the Ries crater provides a rare and well-documented connection between impact structure and strewn field material.
It has been extensively studied by geological institutions for insights into impact melt ejection, atmospheric cooling dynamics and terrestrial impact processes. Due to its limited geographic occurrence in the Czech Republic, Moldavite remains highly sought after by meteorite collectors, impactite enthusiasts and mineral collectors worldwide.
Each specimen represents a direct product of a documented cosmic collision event from the Miocene epoch.
Authenticity & Presentation
This Czech Moldavite specimen has been carefully chosen for authenticity, surface character and colour. The photographs show the exact piece you will receive.
Included is a Certificate of Authenticity lifetime guarantee generic card confirming that this item is genuine Moldavite formed by the Ries meteorite impact event.
A striking example of natural impact glass, this Moldavite specimen offers geological importance, confirmed extraterrestrial event association and distinctive translucent green character in one carefully selected collectible piece.
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