Data from: Production of low-carbon amorphous precipitated silica and hydrated magnesium carbonate from olivine

A novel process is reported that produces amorphous silica and
nesquehonite (MgCO3.3H2O) from the magnesium silicate mineral olivine
((Mg,Fe)2.SiO4). The amorphous silica formed is a supplementary
cementitious material (SCM) for use in concrete. The formation of
nesquehonite sequesters carbon and means that the overall process is
carbon negative. Nesquehonite can also be used to form low-carbon
construction products such as bricks, blocks, and boards. This paper
reports on key process optimisation studies. The potential for amorphous
precipitated silica derived from olivine to produce carbon-negative
concrete is discussed.