Why Does Limestone Make Nonfoliated Marble

During metamorphism the calcite limestone recrystallizes forming the interlocking calcite crystals that make up the marble.

Why does limestone make nonfoliated marble.

Metamorphic rocks that do not show foliation are called nonfoliated rocks. Products made with limestone. Both limestone and marble are types of rock made of calcium carbonate residues. Breakfast cereal paint calcium supplement pills a marble tabletop antacid tablets high quality paper white roofing granules and portland cement.

Travertine tufa caliche chalk sparite and micrite are all varieties of limestone. Limestone has long fascinated earth scientists because of its rich fossil. But the limestone layer consisting just of calcite has undergone the same temperatures and pressures but remains unfoliated. The pressure applied to the reforming rock causes the differences in the way the rock looks once recrystallized and determines whether it will be foliated or nonfoliated.

Even though their chemical nature is almost similar to each other there are many differences between limestone and marble in the way they originate and the physical characteristics they possess. Limestone is a sedimentary so it cannot be foliated or non foliated. One reason a metamorphic rock may not display foliation is that it is made up mainly of one type of mineral so that different minerals cannot separate and line up in layers. Some of the many products made using limestone are shown in this photograph.

1 biogenic precipitation from seawater the primary agents being lime secreting organisms and foraminifera. Limestone vs marble. Is marble foliated metamorphic rock or non foliated metamorphic rock. Marble is a non foliated metamorphic rock.

Nonfoliated does not have distinct layers or bands. Marble is formed from limestone when the limestone is affected by heat and high pressure during a process known as metamorphism. The limestone undergoes metamorhism to slate then phyllite and schist. Limestone is an essential mineral commodity of national importance.

The major differences between foliated and nonfoliated metamorphic rocks are in the areas of texture appearance and the type of pressure applied during recrystallization. And 2 mechanical transport and deposition of preexisting limestones forming clastic deposits.