Marble Where Did The Heat And Pressure Come From

These are formed by deposits of minerals which existed in the limestone before it was affected by extreme heat and pressure in the earth s crust.

Marble where did the heat and pressure come from.

Ages ago the skeletons and shells of countless billions of tiny sea creatures. The resulting rock has a crystalline nature enabling it to take a polish janet writes in remodeling 101. That is it began as one kind of rock and later changed into another kind. The minerals reacted to the pressure differently than the stone did forming veins and patterns.

The heat inside earth is so intense that it moves continents builds mountains and causes earthquakes. With continued metamorphism these crystal seeds grow while any clay deposits in the limestone transform into silicate structures such as mica. Because marble is a fairly soft material only a three on the mohs hardness scale it is easy to cut and carve. Marble comes from limestone that has been changed by heat and pressure.

In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3. It s like putting blankets on yourself the more you layers you put on or the more blankets you put on the more pressure you recieve because of all the weight of the layers on top of you. The beautiful and unique patterns in natural marble are a major reason for its value. Where does all this heat come from.

The resulting marble rock is typically composed of an interlocking mosaic of carbonate crystals. Marble is formed under extreme heat when thinking about the various geological processes that result in the formation of natural stone such as granite and marble you cannot forget about volcanic and igneous activity. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. The rock we call marble is really made over limestone it is a metamorphic rock.

It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite. When the heat and pressure hits the limestone calcite seed crystals form. Usually marble contains other minerals including quartz graphite pyrite and iron oxides. Metamorphism causes variable recrystallization of the original carbonate mineral grains.

Marble is found in the oldest layers of earth s crust. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.