* Foliated (banded) - minerals oriented along visible planes * Example: Schist (fine grain) (from slate) * Example: Gneiss (coarse grain) (from a variety of rock, one of which is granite) * Non-foliated (no banding) usually rock of one mineral) * Example: Quartzite (from sandstone - quartz) * Example: Marble (from limestone - calcium carbonate
Quartzite
False. The terms folidated and nonfoliated apply to metamorphic rocks.
Lack of banding
Nonfoliated metamorphic rocks are formed around igneous intrusions where the temperatures are high but the pressures are relatively low and equal in all directions (confining pressure).
Quartzite is a nonfoliated metamorphic rock that is granular and composed mainly of quartz. It forms from the metamorphism of quartz-rich sandstone.
Quartzite
Quartzite, Marble, and Soapstone are three examples of nonfoliated rock.
Rock salt is not foliated.
lol no
No. Phyllite is definitely foliated.
foliated
False. The terms folidated and nonfoliated apply to metamorphic rocks.
Gabbro is a nonfoliated rock, meaning it does not have a layered structure like foliated rocks such as slate or schist. Gabbro is a coarse-grained, intrusive igneous rock composed mainly of pyroxene, plagioclase feldspar, and sometimes olivine.
Conglomerate rock is nonfoliated, meaning it does not have a layered or banded structure typically found in foliated rocks like schist or slate. Conglomerate forms when rounded gravel and pebbles are cemented together, creating a clastic sedimentary rock.
Usually have a rougher texture
Metamorphic rocks that do not exhibit foliation.
Marble is non-foliated.