Most rocks in Earth's crust belong to the silicate mineral group, which makes up approximately 90% of it. Examples of silicate minerals include quartz and feldspar. Other groups, such as carbonates and phosphates, comprise a much smaller portion. ;
The majority of rocks in Earth's crust are classified as silicates , comprising about 90% of the crust. Silicates, which include minerals like quartz and feldspar, consist mainly of silicon and oxygen. Other groups like carbonates, native elements, and phosphates represent a much smaller portion of the crust.
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