Consisting of limonite, or resembling it in appearance.
The Century Dictionary (Public Domain)
Use "limonitic" in a sentence
"Also there are found pieces of lignitized wood, concretions of manganese, and limonitic concretions."
"Such limonitic ores are found rather widely distributed through the Appalachian region and in many other parts of the world."
"These faults vary in width from a few meters up to 50 meters and consist of highly fractured and limonitic zones with varying amounts of silicification, brecciation and gold."