In areas where there is no water, soil, or vegetation. Rocky deserts, high mountains, and other barren areas are the easiest locations to obtain rock samples.
minerals
The most common minerals found in detrital sedimentary rocks are quartz, feldspar, and clay minerals. These minerals are often derived from the erosion and weathering of igneous and metamorphic rocks.
Quartz, feldspar and biotite are the most common type of minerals that a rock is composed of. Rocks can be sedimentary, igneous and metamorphic; any of the 3 minerals are always present in the rocks.
Quartz and feldspar are the most likely pair of minerals found in felsic rock. Felsic rocks are rich in silica, which forms minerals like quartz, and feldspar is another common mineral found in these rocks.
Minerals that make up moon rocks are the same minerals that are found on Earth. Some moon rocks have minerals that combine to form kinds of rocks that are not found on Earth. BlueStar(:
Most igneous rocks have a relatively homogenous mix of minerals which are interlocked.
Rocks and minerals are found on every continent, not just two - they are found underneath the ocean as well.
Yes, most rocks are indeed composed of a mixture of minerals. These minerals are formed through various geological processes such as cooling and solidification of magma or through metamorphism, resulting in the wide diversity of rock types found in the Earth's crust.
Minerals make up the rocks of earth, so minerals are found wherever there are rocks at the surface. Water too is a mineral so this includes the oceans.
minerals of effusive rocks are minerals that are found as result of cooling of magma
Quartz Feldspar Mica Heavy minerals e.g Garnet/Zircons Bioclasts
Feldspar (the pink one), Quartz (the white one), Biotite (also possibly hornblende) <- the black one