Marble Metamorphic Rock Grade

It is composed primarily of calcium carbonate.

Marble metamorphic rock grade. Lapis lazuli the famous blue gem material is actually a metamorphic rock. What is the metamorphic grade of marble. Low grade metamorphic rocks tend to be fine grained the newly formed metamorphic mineral grains that is. As already noted slate is formed from the low grade metamorphism of shale and has microscopic clay and mica crystals that have grown perpendicular to the stress.

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. Volatiles are those chemical substances including water and carbon dioxide that easily turn into gas or fluid and are mobile enough to move in and out of solid rock. Metamorphic rocks form from pre existing rocks parent rocks due to changes in either temperature pressure or volatiles within the earth often by a combination of all three. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.

Metamorphic rocks arise from the transformation of existing rock types in a process called metamorphism which means change in form. Marble is a non foliated metamorphic rock that is produced from the metamorphism of limestone or dolostone. Variable grade regional or contact metamorphism along a convergent. High grade metamorphic rocks tend to be coarse grained.

Metamorphic grade refers to the degree of heat and pressure needed to create a particular metamorphic rock out if its parent rock. But grain size is also dependent on the grain size of the protolith. Metamorphic rock can be marble because marble is a form of metamorphic rock which is composed of coarse crystals from parent limestone or dolostone rocks.