Pyrite Concretion Ball (Natural “Pyrite Sphere”) — Yunnan Province, China | Mineral Specimen malachite We cushion for vibration and

We cushion for vibration and “corner impacts

swirling bands

radial crystal wavellite

Air bubbles indicating glass

Unlike the more orderly banding of tiger’s eye

Pyrite Concretion Ball (Natural “Pyrite Sphere”) — Yunnan Province, China | Mineral Specimen malachite We cushion for vibration andThis Pyrite Concretion Ball from Yunnan Province (China) is a striking example of natures geometry in the wild. Unlike carved spheres, this piece formed as a concretiona rounded mass that grows as minerals precipitate and cement together over time. Pyrite (iron sulfide, FeS) gives the surface that classic brassy gold metallic sheen, often with subtle texture, micro facets, or natural pitting that highlights its genuine formation. Pyrite concretions