Question

Quartz and feldspar are light-colored, silicate minerals. Which type of igneous rock is made mostly of quartz and feldspar

Answer 1

The igneous rock Granite is mostly composed of quartz and feldspar.


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Answer 2

GRANITE

Step-by-step explanation:

Granite is a light-colored, acidic igneous rock which is primarily comprised of quartz (>50%) and feldspar (50%). These two minerals are light in color, coarser in size and are easily visible to our naked eye in hand specimen. In addition to this, a small amount of amphibole, mica and other minerals are present.

The Continental crust is highly consisted of granite. The minerals present in this rock are coarser, indicating that these minerals cooled at a much slower rate from the molten rock particles.

These granites mostly comprise the deep basement rocks and the stable cratons.