Inner Mongolian quartz point pair tinted with hedenbergite Agate The opaque white mineral is

The opaque white mineral is albite and the black is schorl (black tourmaline)

This point looks quite light colored from some angles

but it has a lot of fascinating details

I have also seen examples where it appeared iron staining had leaked through the breaks

Inner Mongolian quartz point pair tinted with hedenbergite Agate The opaque white mineral isLocale: HuangGangLiang mining district, Inner Mongolia, China Approx point length: 2. 75" Approx weight: 32g These quartz points are from HuangGangLiang, and commonly called Mongolian or Inner Mongolian quartz. When the primary inclusion is hedenbergite, enough to give the quartz a greenish tint, it is more appropriately called hedenbergite quartz. In this specimen, a small amount of hedenbergite inclusions produces a lovely mint green hue in the tip