Inner Mongolian quartz, double-terminated Agate Chunks of rough like this

Chunks of rough like this are commonly sold for lapidary purposes

Approx weight: 75g

UV reactivity There is an opaque white mineral overgrowth on part of the quartz geode that may be calcite

This is caused by quartz crystals that once spotted the surface

The chalcedony section fluoresces white

Inner Mongolian quartz, double-terminated Agate Chunks of rough like thisLocale: HuangGangLiang mining district, Inner Mongolia, China Approx point length: 3" Approx weight: 40g These quartz points are from HuangGangLiang, and commonly called Mongolian or Inner Mongolian quartz. This isn't your typically shiny quartz; the points have a matte luster with a sheen effect, producing a ghostly appearance. This point is translucent, with a milky off white color likely tinted olive gray by hedenbergite. Spherical black inclusions