Silicon & Oxygen (rocks).
Oxygen.!
The most abundant mineral group in the crust is the silicate mineral group.
calcium is!
goyttret
Silicate minerals such as quartz and feldspar are the most common minerals located in earths crust
The 21st most abundant element in the Earth's crust is Chlorine (Cl). It forms 0.05% of the Earth's crust.
The most abundant mineral group in the crust is the silicate mineral group.
The second most abundant element in the Earth's crust is silicon, comprising 27.8% of the crust by mass.
calcium is!
silicon
Aluminum 7.5 to 8.1%
Siliconsilicon at 28%silicon!
goyttret
That would be silicon, or SiO2
Oxygen is the most abundant in the Earth's Crust 46.6% ElementApproximate % by weightOxygen46.6Silicon27.7Aluminum8.1Iron5.0Calcium3.6Sodium2.8Potassium2.6Magnesium2.1All others1.5
The most abundant metal in the earth crust is aluminium.
silicon.
The Earth's crust contains eight elements. The most common element among the eight is Oxygen (47 percent) and second is Silicon (28 percent).