Ever considered investing in beautiful marble worktops? We’ve compiled a list of information regarding everything you need to know about marble worktops.
Marble is a recrystallised limestone that formed when the limestone is softened from huge pressure and heat and in the cooling process recrystallised into marble. The main consistency is calcium and dolomite. You can find it in many colours and is usually veined and with lots of grains. Hardness rates vary from 2.5 to 5 on the Mohs scale of mineral hardness.
Marble is classified into three categories:
1. Dolomite: if it has more than 40% magnesium carbonate.
2. Magnesian: if it has between 5% and 40% magnesium carbonate.
3. Calcite: if it has less than 5% magnesium carbonate.
Most of the granite/marble fabricators will avoid marble for kitchen worktop and they will try to talk you out of this choice. This is because marble is soft, easily etches and stains.
If you ask any geologist about it they will say: “Oh marble. That is really soft stone”.
Marble, the beautiful white stone, has this reputation for being easily etched and stained. Etching in marble isn’t staining; it happens when any kind of acid (lemon juice, vinegar, wine, etc) comes into contact with the marble and eats a tiny bit of the surface layer away, leaving a dull spot. Marble has a composition of magnesium carbonate (mgco3). This means that any kind of acid will react with a carbonate to form carbonic acid (h2co3), which will decompose to form carbon dioxide (co2) and water (h2o). Basic chemistry here!
Marble can also be more susceptible to staining, because it is white and partly because of its porosity (even if its gloss polished, small pores can absorb the liquids)
Sealing the marble can prevent and reduce the staining and there are many ways to absorb certain stains from marble. However etching is unavoidable and to those who want specifically glossy worktops, marble kitchen worktops are not the choice to go for.
Some people love patina marble because it develops over time. We often tell our customers that marble tops are like a piece of leather furniture or an oak dining room table. Marble with etches and stains will show character over time and will ultimately tell a story or bring up a beautiful memory. Although, if you’re the kind of person who a mark on your leather couch, or a red wine spillage on your dining table makes your head explode, marble just isn’t the right choice for your kitchen worktop.
Make sure to follow us on Facebook, Twitter and Instagram to stay up to date with all of our latest blogs, offers and news. There are also regular competitions for a chance to win the kitchen of your dreams.