Many of the types of stones form because of abnormalities in urine pH
| Cause of formation | Stone type | Urine pH |
| Acquired metabolic disorder | Calcium oxalate stone | Acidic (rarely alkaline) |
| Uric acid stone | < 6,0 | |
| Uric acid dihydrate stone | * | |
| Brushite stone | * | |
| Carbonate apatite stone | > 7,0 | |
| Urinary tract infection | Struvite stone | > 7,0 |
| Carbonate apatite stone | * | |
| Ammonium hydrogen urate stone | * | |
| Congenital metabolic disorder | Cystine stone | < 6,0 |
| Dihydroxyadenine stone | * | |
| Xanthine Stone | * |
* No dependence on urine pH.
