Sample ID

Mineral compositions

k_o

Φ

F

α_∞

1

Sample 1

Silica, Alumina, Ferric Oxide, Ferrous Oxide (https://www.bereasandstonecores.com/)

310

20.1

14.5

2.9

2

Sample 2

Alumina and fused silica

(see: http://www.tech-ceramics.co.uk/)

430

44.1

5.0

2.0