Calcium CarbonateCarbonatesMagnesiumLithium CarbonateAnimal ShellsMagnesium SulfateMagnesium DeficiencyCalcium, DietaryCalcification, PhysiologicAntacidsCalcium CitratePinctadaPhosphorusCalcium CompoundsApatitesAluminum HydroxideCalcium PhosphatesCalcium SignalingEgg ShellHyperphosphatemiaMagnesium HydroxideChemical PrecipitationMineralsPhosphorus Metabolism DisordersMagnesium CompoundsPhosphatesLanthanumAnthozoaCalcium GluconateCalcium ChlorideLubricationParathyroid HormoneCalculiLithostathineCalciumMicroradiographyCalcium ChannelsCrystallizationOtolithic MembranePolyaminesAbsorptionSodium BicarbonateMicroscopy, Electron, ScanningMagnesium OxideDihydrotachysterolBiological AvailabilityHydrogen-Ion ConcentrationSeawaterMeteoroidsMarsHypercalcemiaPolyethylenesChelating AgentsConstruction MaterialsCalcium IsotopesTabletsOceans and SeasStrongylocentrotus purpuratusNacreElectron Probe MicroanalysisCarbon DioxideGeologic SedimentsCross-Over StudiesKidney Failure, Chronic