矽鎂鎳礦
Garnierite \Gar"ni*er*ite\, n. [Named after the French geologist Garnier.] (Min.) An amorphous mineral of apple-green color; a hydrous silicate of nickel and magnesia. It is an important ore of nickel.
garnierite n : a green mineral consisting of hydrated nickel magnesium silicate; a source of nickel