Is Marble A Foliated Rock

Limestone a sedimentary rock will change into the metamorphic rock marble if the right conditions are met.

Is marble a foliated rock.

Regional contact and cataclastic. Marble is a non foliated metamorphic rock that is produced from the metamorphism of limestone or dolostone. Non foliated metamorphic rocks are rocks that have been changed by heat and pressure into rocks with a non layered or banded appearance. It is composed primarily of calcium carbonate.

Generally metamorphic rock and the metamorphic processes can be divided into three categories. Marble is a non foliated metamorphic rock. Both foliated and nonfoliated rocks begin their lives as either sedimentary igneous or another metamorphic rock. Also foliated rocks have visible layers or elongated grains of minerals.

Some non foliated rocks include marble amphibolite and quartzite. The specimen shown above is about two inches five centimeters across. Due to geological changes a metamorphic rock of the foliated or nonfoliated type will be created. Marble is a metamorphic rock composed of recrystallized carbonate minerals most commonly calcite or dolomite marble is typically not foliated although there are exceptions in geology the term marble refers to metamorphosed limestone but its use in stonemasonry more broadly encompasses unmetamorphosed limestone.

Lapis lazuli the famous blue gem material is actually a metamorphic rock. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. Examples of foliated metamorphic rocks would be schist gneiss and slate. These geological changes can be due to heat and temperature from the recrystallizing rock being found deep within the earth s crust.

The minerals in the rock are aligned and look platey or banded according to how pressure was applied to the rock during that phase. In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3 usually marble contains other minerals including quartz graphite pyrite and iron oxides these minerals can give marble a pink brown gray green or variegated coloration. Marble is a non foliated metamorphic rock that forms through the metamorphism of limestone. Nonfoliated does not have distinct layers or bands.

Marble is commonly used for sculpture and as a building material. Slate is another common metamorphic rock that forms from shale.