[Population] 5–10% [Circumstances] when urine is alkaline (high pH) [Color] Dirty white [Sensitivity] Radio-opaque [Details] Tends to grow in alkaline urine especially when proteus are present. [Kidney Stone type] 
Calcium phosphate
C a l c i u m o x a l a t e
C a l c i u m p h o s p h a t e
U r i c a c i d
S t r u v i t e
C y s t i n e
X a n t h i n e [ 5 0 ]