2. Calculus made up of oxalate of lime magnified 215 times.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
They have a specific gravity of 1.109 to 1.637, and are composed chiefly of ammonio-magnesium phosphate, oxalate of lime, and organic matter, with a little carbonate of lime and magnesia.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
A less common constituent of urinary calculi is the insoluble oxalate of lime.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler