meteorite
Moldavite
Tektite (Natural Silicate Glass)
AI-generated identification · may be incorrectMohs hardness 5.5-6.5; olive-green to dark brown color; vitreous luster; amorphous crystal structure with conchoidal fracture; specific gravity 2.3-2.4.
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Physical properties
Mohs hardness 5.5-6.5; olive-green to dark brown color; vitreous luster; amorphous crystal structure with conchoidal fracture; specific gravity 2.3-2.4.
Formation & geological history
Formed approximately 15 million years ago by a meteorite impact in the Ries crater region of present-day Germany.
Uses & applications
Prized in high-end jewelry and coveted by mineral collectors for its extraterrestrial impact origin.
Geological facts
Moldavite is a tektite formed from melted terrestrial rock fused with meteorite material ejected during impact. Its distinctive green color and sculpted surface texture are unique among impact glasses.
Field identification & locations
Identified in the field by its deep green color, glassy luster, and characteristic wrinkled or pitted surface texture. Found almost exclusively in the Czech Republic.
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