tetrahedrite

(redirected from Annivite)
Also found in: Dictionary, Wikipedia.

tetrahedrite

[‚te·trə′hē‚drīt]
(mineralogy)
(Cu,Fe,Zn,Ag)12Sb4S13 A grayish-black mineral crystallizing in the isometric system as tetrahedrons and occurring in massive or granular form; luster is metallic, hardness is 3.5-4 on Mohs scale, and specific gravity is 4.6-5.1; an important ore of copper. Also known as fahlore; gray copper ore; panabase; stylotypite.