Cholesterol stones

Mixed stones

Pigment stones

Sex

(Female/Male)

16/0

27/3

45/3

Shape

Rounded 14, Faceted 2

Rounded 12, Irregular 11, Faceted 3, Laminated 4

Irregular 35, Faceted 9, Laminated 4

Colour

Pale Yellow 9, White 7

Greenish 4, Red 8, Brownish yellow 18

Blackish brown 18, Black 30

Surface

Smooth 16

Smooth 19rough 11

Smooth 7, rough 41

Weight

(g, mean)

5.7

1.9

3.2

Character

Soft 13hard 3

Soft 24hard 6

Soft 32, hard 16

Size

(cm, mean)

0.9 × 0.9

0.5 × 0.6

0.7 × 0.8