Anilite Locality: Tilva Mika deposit, Bor Mine, Bor , Bor-Majdanpek District, Serbia ( Locality at mindat.org ) Size: 5.6 x 2.8 x 2.4 cm. Extremely rare, this is a copper sulfide seldom found in such richness. It is absolutely outstanding for the species. These are 3-dimensional crystals, partially embedded in the matrix, showing an iridescent color range and demonstrating clear crystal form. Size is to 7-8 mm. Ex. Gunnar Farber Collection. — Photo: Robert M. Lavinsky · CC BY-SA 3.0
Anilite
A copper sulfide named for its type locality, the Ani mine in Japan's Akita Prefecture.
Intro adapted from Wikipedia (CC BY-SA).
Anilite is an IMA-recognized mineral species in the sulfide class, with the chemical formula Cu₇S₄.
It crystallizes in the orthorhombic crystal system (space group Pnma). It is a member of the Digenite structural group.
Key properties: Mohs hardness 3; specific gravity 5.68; Black streak; Metallic. R1 –R2: n.d luster.
IMA symbol Ani, IMA status: approved, named in 1968.
Found in a drusy quartz vein (Ani mine, Japan); in a Kuroko ore deposit (Matsumine mine, Japan).
It is found associated with Djurleite, covellite (Ani mine, Japan); yarrowite, spionkopite, djurleite, wittichenite, tennantite, chalcopyrite, bornite (Yarrow Creek, Canada).
The name refers to the Ani mine, Japan.