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Aragonite Group

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About Aragonite GroupHide

After the principal species in the group.
Orthorhombic carbonates. The cations are arranged in the structure nearly in the manner of hexagonal closest-packing, yielding marked pseudo-hexagonal symmetry, as illustrated by their angles and by the mimetic twinning characteristics of these species.

Only partial solid solution substitutions of cations extend between the members of this group at ambient temperatures. A complete series extends between Strontianite and Witherite at elevated temperatures.

Relationship of Aragonite Group to other SpeciesHide

Group Members:
Aragonite CaCO3Orth. mmm (2/m 2/m 2/m)
Cerussite PbCO3Orth. mmm (2/m 2/m 2/m)
Strontianite SrCO3Orth. mmm (2/m 2/m 2/m)
Witherite BaCO3Orth. mmm (2/m 2/m 2/m)

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Aragonite Group in petrologyHide

References for Aragonite GroupHide

Reference List:
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Bragg, W.L. (1924) Proceedings of the Royal Society, London: 105A: 16.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 182.

Internet Links for Aragonite GroupHide

Localities for Aragonite GroupHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListShow

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