Assertion: garnet's formula | /r/HasProperty | 2 sio
Facets:
Source sentences:
text: Olivine is a magnesium orthosilicate containing some iron with the variable formula (Mg,Fe) 2 SiO 4 ; the pyroxenes are chain silicates having the variable formula (Ca,Na,FeII,Mg)(Cr,Al,FeIII,Mg,Mn,Ti,V)Si