Abstract
| - By elemental analyses of extracts from industrially producedmaterial, X-ray diffraction studieson single crystals and powders, and critical evaluations of theprevious literature, it is shownthat the compound variously reported or assumed to beMg3Ca(SO4)4 in previousstudies is actuallyMg2Ca(SO4)3 and that thisfinding is not only reasonable, but was to be expected.
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