Shocked quartz
Form of the mineral quartz, found in nuclear test sites and meteor impact zones
Shocked quartz
Shocked quartz is a form of quartz that has a microscopic structure that is different from normal quartz. Under intense pressure (but limited temperature), the crystalline structure of quartz is deformed along planes inside the crystal. These planes, which show up as lines under a microscope, are called planar deformation features (PDFs), or shock lamellae.
Read on Wikipedia · Image Martin Schmieder, CC BY 3.0
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