A mineral assemblage consists of fayalite,ferrosillite,quartz in equilibrium. the no of components and degree of freedom in pt space

Ferrosilite is Fe2Si2O6, Fayalite is Fe2SiO4, Quartz is SiO2 The minimum number of components which will make these three phases (quartz, ferrosilite, Fayalite) is 2 i.e. FeO and ...

Basically the components are the major oxides and fluid. Fayalite:- Fe2Sio4. so feo and Sio2 Ferrosillite:- (FeMg)2Si2O6 so Feo ,mgo,sio2 Quartz:- sio2 so component is feo, mg...