an amorphous hydrated ferric oxide, varying in color from dark brown to yellow, used as an ore of iron.
/ˌlaɪ məˈnɪt ɪk/
a common brown, black, or yellow amorphous secondary mineral that consists of hydrated ferric oxides and is a source of iron. Formula: FeO(OH).
[C19: probably from Greek
translation of earlier German name,
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The rock cleaves along finely laminated bedding planes which are coated with limonite.
Limonite specimens found in the field coated with clay.
Occasionally, large pseudomorphs of limonite after pyrite can be found in these areas as well.
On this image, white and yellow colors indicate rocks rich in clay minerals and limonite in rocks of red and yellow hues.
Much of the material was spiderwebbed with thin veinlets of limonite.
The breccia is limonite-stained, but pyrite and/or marcasite has only been observed in the altered siltstone.
It was enveloped in a biological shield made of high-density concrete containing scrap iron and limonite.