Inner Mongolian quartz, double-terminated Agate This is caused by quartz

This is caused by quartz crystals that once spotted the surface

Hyalite can appear fluid with formations that look like the splash from a drip frozen in place

UV reactivity The small amount of hyalite will react a strong yellow-green color under 395nm UV or 365nm UV light

This specimen has saturated orange to orange-red hexagonal tablet crystals liberally covering a dusty black botryoidal matrix

The chalcedony section fluoresces white

Inner Mongolian quartz, double-terminated Agate This is caused by quartzLocale: 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