"Ankerite-sparstone"@en . . "AKSPT"@en . "Ankerite-sparstone - A dolomite-sparstone in which the carbonate is composed dominantly of ankerite. British Geological Survey Research Report RR/99/03, section 3.2 and fig. 7."@en . . "stable"@en . . . "Ankerite-sparstone"@en .