Urinary calculi—commonly referred to as “urinary stones” or “urolithiasis”—can be a painful and potentially fatal condition ...

Struvite, the same substance that makes up kidney stones and irritates sewage plant operators, could be an effective alternative to using a limited supply of mined phosphate for crop fertilizer.

Struvite stones, also known as infection stones, are kidney stones made of magnesium ammonium phosphate. Struvite stones are often associated with urinary tract infections and other conditions.

After the struvite crystallized, the pH of the solution dropped, allowing a second generation of small newberyite crystals to form. This process, Menor Salvan explains, could be relevant for ...