Mineral

Formula

2002

2010

2021

Aegirine

NaFe³⁺Si₂O₆

3.4%

17.9%

22.9%

Orthoclase

KAlSi₃O₈

1.1%

-

-

Leucite

K₂Al₂Si₄O₁₂

22.4%

15.4%

15.9%

Nepheline

Na₂Al₂Si₂O₈

24.3%

21.7%

17.9%

Olivine

(Mg,Fe)₂SiO₂

6.9%

4.2%

-

Perovskite

CaTiO₃

4.2%

2.7%

2.9%

Wollastonite

CaSiO₃

24.0%

12.9%

13.0%

Hematite

Fe₂O₃

12.7%

1.3%

9.7%

Ilmenite

FeTiO₃

0.5%

-

11.5%

Larnite

Ca₂SiO₄

-

9.5%

9.70%

Kaliophilite

K₂Al₂Si₂O₈

-

11.1%

-

Apatite

Ca₁₀P₆F₂O₂₄

-

2.7%

2.2%

Hypersthene

FeSiO₃

-

-

3.8%