KIDNEY ORE (HEMATITE) FOR SALE

Hematite is a mineral form of iron oxides and major iron ore. It is harder but more brittle than pure iron, with colors ranging from black to steel gray, brown, and red. It can form in numerous habits, but its botryoidal habit is commonly referred to as kidney ore.

Kidney ore's bubbly, globular shape is a result of layered growth around a nucleus, such as a speck of sand or dust. As more material is deposited, the spheres grow larger and eventually overlap with those that are nearby. These spheres then fuse together to form attractive botryoidal clusters. These masses are typically a glossy black color, but rust red varieties also exist depending on locality.
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4 Items ($12 to $12)