Species / Carbonates and nitrates / #0220

Ankerite

Carbonates and nitrates trigonal #0220

Ankerite is a mineral species described as mineral, calcium iron carbonate. It is classified under the Nickel-Strunz scheme and its reference data is listed below.

Formula	Ca(Fe²⁺,Mg)(CO₃)₂
Strunz code	5.AB.10
Class	Carbonates and nitrates
Crystal system	trigonal
Type locality	—
Named after	Matthias Joseph Anker
Streak	white

Ankerite specimen — Photo: Auckland Museum Collections from Auckland, Aotearoa New Zealand — CC BY 2.0 · Wikimedia Commons

Composition

Composition varies — this species has no single resolved formula.

Physical

Mohs

Density

3 g/cm³