There is certainly a strong familial predisposition to this condition. There are those that simply absorb excessive calcium and excrete the extra calcium through the urine. High levels of urinary calcium causes crystallisation and subsequent stone formation.
Excessive intake of vitamin D and some medications (diuretics) may also give rise to excessive calcium in the urine. Metabolic conditions e.g. gout (excess uric acid), hyperparathyroidism, cystinuria (inherited disease), and hyperoxaluria (inherited disease) are also common causes of stone formation.