title: In vitro formation of calcite concretions.
mesh_terms: D000818:Animals; D002119:Calcium Carbonate / Q000138:chemical synthesis*; D002122:Calcium Chloride; D002254:Carbonates; D003460:Crystallization; D005780:Gelatin; D005782:Gels; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D000644:Quaternary Ammonium Compounds
chemical_list: D002254:Carbonates; D005782:Gels; D000644:Quaternary Ammonium Compounds; D005780:Gelatin; D002119:Calcium Carbonate; D002122:Calcium Chloride