Sample

ID

Mean

Size

class

Std.

Dev.

Sorting

class

Skewness

Class

Kurtosis

Class

A2

2.07

Fine

0.39

Well

0.25

Fine-skewed

1.26

Leptokurtic

A16

1.67

Medium

0.57

Moderate

−2.53

Strongly

coarse-skewed

2.41

Very

leptokurtic

A17

2.61

Fine

0.54

Moderate

−2.93

Strongly

coarse-skewed

1.44

Leptokurtic

B5

3.35

Very fine

0.53

Moderate

−5.97

Strongly

coarse-skewed

1.8

Very

leptokurtic

B6

2.57

Fine

0.21

Very well

3.75

Strongly

fine-skewed

0.53

Very

platykurtic

C2

2.53

Fine

0.22

Very well

1.09

Strongly

fine-skewed

0.82

Platykurtic

C5

3.19

Very fine

0.45

Well

−0.55

Strongly

coarse-skewed

1.4

Leptokurtic

C8

2.56

Fine

0.21

Very well

3.74

Strongly

fine-skewed

0.52

Very

platykurtic

C9

2.76

Fine

0.34

Very well

2.25

Strongly

fine-skewed

0.67

Platykurtic

D2

2.79

Fine

0.35

Well

2.05

Strongly

fine-skewed

0.69

Platykurtic

D3

2.79

Fine

0.42

Well

−0.74

Strongly

coarse-skewed

0.99

Mesokurtic

D7

3.2

Very fine

0.56

Moderate

−3.09

Strongly

coarse-skewed

2.43

Very

leptokurtic

D8

3.22

Very fine

0.51

Moderate

−3.97

Strongly

coarse-skewed

1.93

Very

leptokurtic

E6

2.53

Fine

0.19

Very well

4.82

Strongly

fine-skewed

0.36

Very

platykurtic

E7

2.73

Fine

0.34

Very well

0.59

Strongly

fine-skewed

0.84

Platykurtic