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Description

Inner Mongolian quartz, large pointLocale: HuangGangLiang mining district, Inner Mongolia, China Approx point length: 4. 5" Approx weight: 118g 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. The tip of the main point is tinted a greenish gray color by hedenbergite inclusions, while the rest of the point is

but minus the aid of bacteria: mineral-rich waters precipitate barite which binds with sand to form concentric layers around a nucleus

well-formed crystals displaying parallel growth and twinning

Epidote grows long slender prismatic crystals with saturated olive green color

though it does have some interesting cactus-quartz growth on that top portion

Sandstone with distinct layering like this is often called ‘picture stone’ because the layers can resemble a southwestern landscape

The black tourmaline (schorl) is mostly poorly developed

The chalcedony section fluoresces white

as if someone piped icing on a cake when it was still warm so it's starting to melt down the sides

is accompanied by smaller schorl crystals

UV reactivity Moderate white fluorescence when exposed to 365nm UV light

Approx dimensions: 4 x 3

Feldspar might seem dull since it is near-white and opaque