There are different compositions for the kidney stones including Calcium oxalate, Calcium phosphate, Uric acid, Struvite, Cystine, and Xanthine.

Please specify the compound you are interested in.

Dear Hassan,

As you known, there are several types of kidney stones. In general,

oxalate, phosphate, struvite, uric acid crystals are found in kidney stones. Majority of them are calcium oxalate monohydrate (whewellite), calcium oxalate dihydrate (weddelite), calcium phosphate or a mixture of them. In the appendix I send you examples of diffraction patterns of kidney stones

Fig 1. The mixture of weddelite and whewellite

Fig 2. The struvite

Best regards

Waldemar

Dear Hassan,

for example please have a look at the following link:

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.862.4668&rep=rep1&type=pdf

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5418413/

Thanks Dear Waldemar