Loading data...

Impressum Privacy Policy

© 2026 TerraCollect

0.2.41

Minerals - Carrollit | TerraCollect

Mineral - Carrollit

CarrollitCu(Co,Ni)₂S₄

Chemical Properties

Mineral Class

Sulfides and sulfosalts

Toxicity

none

Formula

Cu(Co,Ni)₂S₄

Unit Cell

a=9.46 Z=8

Physical Properties

Hardness

5

Streak

blackgraygray black

Optical Properties

Color

gray

Birefringence

Luster

Metallic

Transparency

opaque

Pleochroism

Geomineralogical Properties

Crystal System

isometric

Point Group

Composition

Elements

Mass

Cu

20.20

Co

38.60

Ni

0.30

Fe

0.60

S

41.20

DR Congo (Palache et al. 1952)

Groups and Members

Spinel-Supergroup

Thiospinel-Group

Carrollite-Subgroup

Karten-Ebenen

Geologische KarteSatelliten Karte

Density

Heavy (3,5-6)

Cleavage

Indistinct after {001}

Fracture

conchoidal,

uneven

Tenacity

Brittle

hexoctahedral - 4/m 3 2/m

Space Group

Fd3m (227)

Habit

Octahedron, Cube

Formation

In hydrothermal ore deposits of stratiform sedimentary deposits, under reducing conditions

Paragenesis

Twinning

Rarity

Rather rare

Synonyms

Carrollit