Magma is a hot, liquid mixture that changes to solid rock when it cools and hardens. Which of these characteristics are physical properties? The characteristics that are physical are its liquid mixture and solid rock.
The crystals shown above are typical triple phosphate crystals, found in feline and canine urine, and are classically described as rectangular coffin lid shape. They are also called magnesium ammonium phosphate or struvite crystals and are typically found in alkaline urine.
These crystals, which are like very fine sand, irritate the bladder. In male cats, the crystals may plug the urethra (the tube that carries urine from the bladder, through the penis, to the outside of the body). This is a life-threatening condition, since the cat would be unable to urinate.n the past, crystals and stones made of struvite were more common in cats. As a result, diets were developed to minimize the risk of forming struvite. These diets were low in magnesium and cats eating them produced an acidic (low pH) urine.