Sulfate carbonate
class of chemical compounds
The sulfate carbonates are a compound carbonates, or mixed anion compounds that contain sulfate and carbonate ions. Sulfate carbonate minerals are in the 7.DG and 5.BF Nickel-Strunz groupings.
They may be formed by crystallization from a water solution, or by melting a carbonate and sulfate together.
In some structures carbonate and sulfate can substitute for each other. For example a range from 1.4 to 2.2 Na2SO4•Na2CO3 is stable as a solid solution. Silvialite can substitute about half its sulfate with carbonate and the high temperature hexagonal form of sodium sulfate (I) Na2SO4 can substitute unlimited proportions of carbonate instead of sulfate.
The public source identifies “Sulfate carbonate” as class of chemical compounds. This brief keeps that definition visible, then builds a research path around Sulfate, carbonate and class.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Mar 23, 2026. The linked authority identifier is Q96406681. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Sulfate carbonate” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.