Inner Mongolian quartz, double-terminated Feldspar adding a mustard-yellow coating to

adding a mustard-yellow coating to the botryoidal growth

with some more opaque whitish layers inside

so they appear dark gray until you look closer and see swirls of red and lime green

Some hedenbergite quartz like one this produce an odd grainy effect just under the surface at the tip

There are some very small calcite crystals sprinkled on the piece

Inner Mongolian quartz, double-terminated Feldspar adding a mustard-yellow coating toLocale: 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