Revision as of 13:33, 27 April 2022 by MDerrick (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search


A mineral of Dolomite group in which some of the Magnesium is replaced by Iron, and Manganese. Ankerite was first recognized as a unique mineral by W. von Haidinger in 1835. Deposits are often found with Siderite in iron-ore.


Ankerite PMA.TIF

Synonyms and Related Terms

brown-spar; pearl-spar; bitter-spar; ankerite (Port.)

Physical and Chemical Properties

Color is white, gray, yellow-brown, or reddish-brown.

Composition Ca(Fe, Mg, Mn)(CO3)2
Mohs Hardness 3.5-4.0
Density 2.9-3.1 g/ml

Resources and Citations

  • [==Resources and Citations== Ankerite]
  • Jose Delgado Rodrigues, LNEC, 2009, submitted information.