Sage-Tips

Why chalk is soft and marble is hard?

Both marble and chalk are created from calcium carbonate compound. Chalk is very fragile and soaks water which is not good for making buildings on the other hand, marble is very hard and water repellent.

What is the difference between marble and chalk?

The formula for Limestone, Marble and Chalk is same ,i.e., CaCO3 All of them are a form of calcium carbonate. Chemically there is no difference in them but they differ in their physical structure. Marble has a hard crystalline structure while Chalk is amorphous in nature.

Why is the chemical formula of chalk and marble same?

Marble is in general terms metamorphosed limestone, mostly composed of recrystallised carbonate minerals. So the bulk of marble is just CaCO3. Calcite is an ionic salt called calcium carbonate or CaCO3. The chemical formula for chalk is CaCO3.

What is the chemical formula of chalk and marble?

It is a chemical compound with the chemical formula CaCO3. It is a white insoluble powder-like substance which occurs naturally in minerals, chalk, marble, limestone, calcite, shells, pearl, etc.

What is the chemical formula of limestone marble and chalk?

Limestone, marble, and chalk are composed of the compound Calcium Carbonate (CaCO 3). Limestone and chalk: Limestone and chalk are organically formed sedimentary rocks.

Does chalk turn into marble?

Marble is a coarse-crystalline, metamorphic rock, which is formed when chalk or limestone are recrystallised under conditions of high temperature and pressure, often a result of regional metamorphism – movement of the earth’s crust .

What is the chemical formula of marble?

The chemical name of marble is calcium carbonate. Its chemical formula is CaCO3.

What is the chemical formula of chalk piece?

CaCO3
Calcium carbonate (Chalk) is a chemical compound, with the chemical formula CaCO3.

How is chalk formed?

They’re formed from the skeletal remains of minute planktonic green algae that lived floating in the upper levels of the ocean. When the algae died, their remains sank to the bottom of the ocean and combined with the remains of other creatures to form the chalk that shapes the cliffs today.

What is chalk chemical formula?

Calcium carbonate is a chemical compound with the formula CaCO3 formed by three main elements: carbon, oxygen, and calcium.

Why is marble not chalk like rock?

Since it contains large lumps, it does not form such a fine white powder as chalk. Marble is metamorphosed limestone, ie subjected to heat and pressure, the crystals grow and interlock, forming a stronger rock, more suitable for a building material.

What is the chemical formula for marble?

What Is the Chemical Formula for Marble? Marble is made of calcium carbonate, CaCO3, which is also what limestone is made from. The only difference between limestone and marble is the crystalline structure.

What is the difference between calcium carbonate and limestone and marble?

Calcium carbonate does have (at least) two crystal forms (aragonite and calcite), but I think limestone, chalk and marble are all calcite. I think the difference is due to particle size, how well formed the crystals are and what impurities are present. Please disregard all previous signatures.

What is marbles made of?

Marble is metamorphosed limestone, ie subjected to heat and pressure, the crystals grow and interlock, forming a stronger rock, more suitable for a building material. Sometimes minerals in the original limestone are still visible as swirls of colour in the marble