Calcarea Carbonica vs. Calc Ostrearum in Homeopathy: Understanding the Difference

Calcarea Carbonica (Calcium Carbonate) is prepared from the mineral calcite. Insoluble in water, soluble in acids. Used for various physical and emotional symptoms.

Calc Ostrearum (Calcarea Ostrearum / Mother of Pearl) is prepared from oyster shell inner layer. Primarily calcium carbonate with trace magnesium, phosphate, sulfate. Mainly used for respiratory ailments.

While both contain calcium carbonate, they are distinct homeopathic remedies with different therapeutic indications based on source and preparation.