silica

As nouns the difference between silica and silcrete

is that silica is silica while silcrete is an indurated duricrust formed when silica is dissolved and resolidifies as a cement.

As a noun silica

is silica.

As a verb biomineralize is

(biology) to mineralize within a biological organism; eg to form bone (in vertebrates) or silica skeleton (in diatoms).

As nouns the difference between silica and pseudophillipsite

is that silica is silica while pseudophillipsite is (mineralogy|dated) a variety of phillipsite containing less silica.

As nouns the difference between silica and moganite

is that silica is silicon dioxide while moganite is a crystalline form of silica that has a different crystal structure than that of quartz.