Skip to main content

Science – Society – Technology

Geothermal Energy Cover Image

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