silicate perovskites
... that silicate perovskites may make up to 93% of the lower mantle and that the magnesium form is considered to be Earth's most abundant mineral?
... that <b id="mwCxM"><a href="./Silicate_perovskite" id="mwCxQ" rel="mw:WikiLink" title="Silicate perovskite">silicate perovskites</a></b> may make up to 93% of the lower <a href="./Mantle_(geology)" id="mwCxU" rel="mw:WikiLink" title="Mantle (geology)">mantle</a> and that the magnesium form is considered to be Earth's most abundant mineral?