Component

Amount (mass percent)

MgO

1.7277

Al₂O₃

33.6425

SiO₂

47.5489

P₂O₅

0.2339

SO₃

0.4039

Cl

0.8168

K₂O

1.3569

CaO

0.4612

TiO₂

1.3894

MnO

0.2673

Fe₂O₃

12.0768

CuO

0.014

ZnO

0.0191

Br

0.0077

SrO

0.0083

ZrO₂

0.0257