Is Marble Extrusive

Contains many small holes.

Is marble extrusive.

Granite is an intrusive igneous rock composed mainly of feldspar. Marble is a metamorphic rock that was originally limestone a sedimentary rock and is composed primarily of the mineral calcite. All of the above. As the rate of cooling increases the size of the crystals that form.

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. Something that has also contributed to the durable and strong nature of the rock. The terms intrusive and extrusive apply to igneous rocks. Extrusive rocks igneous rocks which form by the crystallization of magma at the surface of the earth are called extrusive rocks.

Marble is commonly used for sculpture and as a building material. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. Apart from the colors another reason why granite isn t extrusive is the significant visible minerals. As stated above extrusive rocks don t have minerals large enough to be obvious.

Extrusive or volcanic igneous rock is produced when magma exits and cools above or very near the earth s surface. Is composed of alternating bands of light and dark silicate minerals. The magma called lava when molten rock erupts on the surface cools and solidifies almost instantly when it is exposed to the relatively cool temperature. These are the rocks that form at erupting volcanoes and oozing fissures.

The molten material then slowly solidifies below earth s surface where it may later be exposed through erosion. By contrast intrusive rocks are formed from magma that was forced into older rocks at depth within earth s crust. 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 under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is. These colors are a result of the rock being intrusive instead of extrusive.