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A brief and crisp guide to help you choose good quality marble

Written By Marble Junction

If you are someone who is planning to build a living or commercial space or either someone who is looking forward to a house or commercial space renovation and want to include marble as an ingredient, then you must have come to a point where you need to know that "How to Judge the Quality of Marble".

Well, there is no steadfast set industry standards for quality when it comes to marble slab/marble sample piece. Although, there are certain ways through which you can watch out for the quality of the marble slab/marble sample piece.

You just need to look for certain factors and learn it. It will help you to choose the right marble slab/marble piece for your construction project needs, be it for a new construction site or a site that needs a renovation.

You must look for the factors that make a marble slab/marble piece stronger, along with the factors that make marble slab/marble piece weaker.

Here, in this brief and crisp "guide on how to choose good quality marble slab/marble piece", we have mentioned certain ways and steps for your convenience that will help you to choose good quality marble.

(i) Examining the backside of a marble slab/marble piece

Just turn over the marble slab/marble piece and try to look at the backside of it. If the back of the marble slab/marble piece appears to be covered in a mesh or net, then this marble slab/marble piece may be more fragile and brittle in comparison to other marble that is not covered in a mesh or net.

This mesh or net on the backside (rear side of the exposed surface) of the marble slab generally happens to be the fiberglass and resins.

These fiber-glasses, resins along with epoxies are used to reinforce the stone against cracking or breaking of the marble slab.

Hence, you must note that this kind of marble (which bears mesh or net on its backside) may not be as suitable for highly exposed are of the building sites, like using these marbles for flooring that is expected to witness high traffic.

As some times these marble piece or marble slabs may happen to be brittle and may sometimes crack. Moreover to it, these marbles will scratch or etch more easily.

(ii) Examining the surface of the marble under a source of light

Hold the provided piece or slab of marble under a source of light at an angle of 45 degrees and then examine the surface of the marble. This step will reveal the flaws like small, dull patches on an over the polished surface area on the marble.

Generally, these types of flaws of marble are hide by filling these small holes or fissures in its surface with epoxies and resins.

In case of some White marble, epoxy or resin fill are generally found in the marbles lower grades, whereas in the marbles of higher quality no holes and fissures are encountered hence, it does not need to be filled with epoxy or resin.

These epoxy or resin-filled spots may come out over the due course of time, leaving a hole in the marble that will be needed to patch up, to prevent further damage to the stone.

Hence, avoid buying the marbles with resin or epoxy fill that is not a good color match to the natural color of marble stone, or marble that has multiple fill spots

(iii) Looking for veins on the surface of marble

Look for veins on the marble surface and then try to examine the rear side of the marble piece to locate that whether this crack or fissure is running down to the backside of the marble piece or not.

Some marbles are very prone to fissures, and if these fissures are deep enough then it is more likely to crack. Therefore avoid using these types of marbles at the sites where you expect high activity, instead use them for low activity areas like wall cladding, etc.

(iv) Examining the hardness factor of marble

Examine and try to ask your marble dealer or marble provider to discover the hardness factor of the given marble.

A marble piece may have a high hardness factor, though if it seems to have fiberglass, resin or epoxy fills or fissure spots, then this type of marble is considered to be of low grade.

Whereas interestingly, you may encounter varieties of marble stone having a lower hardness factor and it may have these flaws that don't alter the overall quality of the marble piece.

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