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Table 3 Chemical composition of fresh basaltic glass, per 1 mol Si, derived from Gysi and Stefansson (2011)

From: Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

Component

Mol amount

Al2O3

0.350

CaO

0.270

FeO

0.169

Fe2O3

0.012

MgO

0.260

Na2O

0.080

SiO2

1.000

  1. Molar mass = 119.13 g/mol and density = 2.9 g/cm3
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