Element or mineral^a

Average

Standard deviation

Minimum

Maximum

Fe_T

66.5

0.73

58.4

69.0

SiO₂

4.33

0.83

1.47

13.6

Amphiboles

0.11

0.29

0.00

4.56

Apatite

0.054

0.015

0.00

0.14

Carbonates

0.25

0.27

0.00

3.71

Hematite Goethite

86.9

7.15

36.1

98.0

Magnetite

8.14

6.86

0.00

57.14

Mica

0.031

0.034

0.00

0.82

Manganese oxides

0.075

0.070

0.00

1.10

Plagioclases

0.11

0.13

0.00

2.53

Pyrite

0.019

0.054

0.001

1.45

Quartz

4.22

0.86

1.35

13.5

Titaniferous minerals

0.072

0.19

0.00

3.33