[Kidney Stone type] Uric acid [Population] 5–10% [Circumstances] when urine is persistently acidic [Sensitivity] Radiolucent [Details] Diets rich in animal proteins and purines: substances found naturally in all food but especially in organ meats, fish, and shellfish. [Color] 
Yellow/Reddish brown
B l a c k / D a r k b r o w n
D i r t y w h i t e
Y e l l o w / R e d d i s h b r o w n
P i n k / Y e l l o w
B r i c k r e d