Pica Glass - Cometary Airburst Melt-Glass - Complete Individual - 2.91g - Chile (Atacama)
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SKU
PIC-01/79
Pica Glass is a rare and unusual natural glass found in the Atacama Desert of northern Chile, one of the driest environments on Earth. It is believed to have formed during a high-energy event, most likely a meteor airburst, where intense heat rapidly melted surface material and transformed it into glass. This origin places Pica Glass alongside impact-related materials as a potential Impactite.
Pica Glass is characterised by its twisted, folded, and often sculpted forms, reflecting the turbulent conditions under which it formed. Specimens typically range from dark green to black and display glossy surfaces with complex textures created during rapid cooling. Some pieces show unusual internal features or inclusions, adding further interest and variation. Its irregular shapes and dynamic appearance set it apart from more uniform natural glasses.
Pica Glass remains limited in occurrence and continues to be studied for its formation and properties. For collectors, it offers a distinctive and increasingly recognised material within meteorite-related categories, combining unusual morphology with a strong association to high-energy cosmic events. Each specimen reflects a unique set of formation conditions, making it a compelling addition to specialised collections.