Locality: Tiro Estrella Mine, El Capitan Mountains, Capitan District, Lincoln County, New Mexico, USA
Description: My dad and a friend starting to dig the crystal vein, June 2012. This vein is unique to my knowledge in that it is a feldspar/quartz vein that produces Japan-law twinned quartz. Most twinned quartz that I'm aware of comes from contact metasomatic zones or from hydrothermal-type veins.

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