limoniitti

Etymology
(see 🇨🇬). Contains the suffix.

Noun

 * 1)  limonite
 * 2)  bog iron

Usage notes
is a technical term for a mixture of hydrated iron(III) oxide-hydroxides in varying compositions. When found in sufficient quantity and quality to be regarded as a deposit of iron ore, it may be called, or  according to where the deposit is found.