Inner Mongolian quartz point pair tinted with hedenbergite Agate these nodules have slightly obscene-looking

these nodules have slightly obscene-looking bulbous

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

so it easily ends up with 'you are what you eat' discoloration

Garden quartz is generally sold polished to best reveal its internal features

There is also a dark brown mineral overgrowth (unknown

Inner Mongolian quartz point pair tinted with hedenbergite Agate these nodules have slightly obscene-lookingLocale: 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