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Shocked quartz
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{{Short description|Form of the mineral quartz, found in nuclear test sites and meteor impact zones}} {{Distinguish|Fused quartz}} [[File:Suvasvesi shocked quartz.jpg|thumb|right|upright=1.2|[[Photomicrograph]] of 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.
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