Ankerite : CSIRO Spectroscopy Database

Ankerite [ Ca(Fe^II,Mg)(CO₃)₂ ]

Material properties

Formula	Ca(Fe^II,Mg)(CO₃)₂
Abbreviation	Ank
Classifications	Dolomite (group), Minerals containing CO3
IMA Status	Grandfathered (pre-IMA), 1825
Search other databases	webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry	Trigonal
Tags	Mineral, Carbonate

Composition

Element	Wt%
Mg	3.53
Ca	19.42
Mn	2.66
Fe	16.24
C	11.64
O	46.51
Total:	100

Specimens of Ankerite

Name	Owner	Materials	Phase purity	Image
M0302 Sphalerite	CSIRO	Ankerite (41.8%), Chalcopyrite, Dolomite, Galena, Quartz, Sphalerite	41.8	M0302 Sphalerite Image of Ankerite, Chalcopyrite, Dolomite, Galena, Quartz and Sphalerite in specimen 'M0302 Sphalerite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.
M2096 Quartz / Ankerite	CSIRO	Ankerite (25.0%), Arsenopyrite, Fluorapatite, Muscovite-2M1, Pyrite, Quartz, Scheelite	25.0	M2096 Quartz / Ankerite Image of Quartz, Ankerite, Arsenopyrite, Fluorapatite, Muscovite-2M1, Pyrite and Scheelite in specimen 'M2096 Quartz / Ankerite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
M0339 Pyrite	CSIRO	Ankerite (5.5%), Dolomite, Muscovite-1M, Muscovite-2M1, Pyrite, Quartz	5.5	M0339 Pyrite Image of Muscovite-2M1, Ankerite, Dolomite, Muscovite-1M, Pyrite and Quartz in specimen 'M0339 Pyrite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
M0188 Scheelite	CSIRO	Ankerite (3.9%), Dolomite, Quartz, Scheelite, Stibnite	3.9	M0188 Scheelite Image of Scheelite, Ankerite, Dolomite, Quartz and Stibnite in specimen 'M0188 Scheelite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.
M0834 Albite / Augite / Sanidine	CSIRO	Albite, Ca, Ankerite (3.1%), Augite, Forsterite, Fe, Ilmenite, Montmorillonite, Sanidine	3.1	M0834 Albite / Augite / Sanidine Image of Albite (var. Ca), Ankerite, Augite, Forsterite (var. Fe), Ilmenite, Montmorillonite and Sanidine in specimen 'M0834 Albite / Augite / Sanidine' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
M0014 Stibnite	CSIRO	Ankerite (2.1%), Muscovite-1M, Muscovite-2M1, Quartz, Stibnite	2.1	M0014 Stibnite Image of Stibnite, Ankerite, Muscovite-1M, Muscovite-2M1 and Quartz in specimen 'M0014 Stibnite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.
M2597 Bornite / Quartz / Digenite	CSIRO	Ankerite (2.0%), Bornite, Calcite, Chalcocite, Digenite, Quartz	2.0	M2597 Bornite / Quartz / Digenite Image of Bornite, Ankerite, Calcite, Chalcocite, Digenite and Quartz in specimen 'M2597 Bornite / Quartz / Digenite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
MES124 Microcline / Hambergite / Albite	CSIRO	Albite, Ankerite (2.0%), Cookeite, Hambergite, F, Microcline, Orthoclase, Quartz	2.0	MES124 Microcline / Hambergite / Albite Image of Microcline, Albite, Ankerite, Cookeite, Hambergite (var. F), Orthoclase and Quartz in specimen 'MES124 Microcline / Hambergite / Albite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.
M0185 Scheelite	CSIRO	Ankerite (1.8%), Magnesio-hornblende, Fe2+, Molybdenite-2H, Quartz, Scheelite	1.8	M0185 Scheelite Image of Quartz, Ankerite, Magnesio-hornblende (var. Fe2+), Molybdenite-2H and Scheelite in specimen 'M0185 Scheelite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.
SHCa1.2 Hectorite / Calcite	CSIRO	Ankerite (1.5%), Calcite, Mg, Hectorite, Quartz	1.5	SHCa1.2 Hectorite / Calcite Image of Hectorite, Ankerite, Calcite (var. Mg) and Quartz in specimen 'SHCa1.2 Hectorite / Calcite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.