Volume % of Mineral

Mineral

This Study

Rubin et al. 1987 [1]

O’Neill 2014 [4]

K-Spar 52 51 48 - 52

Quartz 23 30 28 - 30

Albite 13 11 8 - 14

Mica 4.3 4.5 4 - 5

Magnetite/Hematite 2.1 1 2 - 3

Cryolite 1.2 2.5

Zircon 0.32 Trace

Yttrofluorite 0.25 Trace