Sample

SiO₂

Al₂O₃

Fe₂O₃

CaO

MgO

SO₃

Na₂O

K₂O

TiO₂

MnO

P₂O₅

Crushed ceramic

54.97

14.28

4.77

11.14

3.36

2.07

1.27

3.08

0.55

0.06

0.17