(This article is specifically designed for Indian subcontinent)
Marble stone should be hard, sound, dense, and homogeneous in texture with crystalline texture. It should generally be uniform in color, veining and be free from stains, cracks, decay and weathering etc.
Precautions while Purchasing Marble Stone 1) Check patches on surface of discoloration, hairlines, cracks, deep pin holes on the surface. These signify a weak slab and will cause problem. Bad Good
1. Check the quality of marble stone and compare the available quality in your area with the quality of stone available in any other reputed market near your area. .
2. Try rates from three or four shops. The rates may vary in following two ways.
• According to quality of the stone
• According to size of stone slab as the smaller the size of stone slabs is, the cheaper the rate of stone slab would be.
3. Make sure that the stone being offered is hard. This can be verified by pressing the stone with some hard object forcibly. In case of ‘katcha’ stone the chips of stone will split from stone slab.
4. Make sure that the stone slab gives clear ringing sound when struck.
5. Verify that the stone is free from any stain i.e. deep cut or mark on the surface.
6. Confirm that the stone has uniform color without any spot.
7. Check the thickness of stone pieces and take supply of only those pieces that have the same thickness.
8. Check stone pieces thoroughly because it is generally observed that the shopkeeper place superior pieces on the top of stack and inferior pieces below.
9. Measure the stone by smallest rectangle at the time of payment. The broken piece should not be measured.
10. Make sure that the loading is done in your presence as the labor at the shop may also load inferior or rejected pieces instead of superior pieces of the same size in the vehicle.
11. Get the pieces of stone laid vertically; not horizontally in the vehicle. If loading is done in horizontally , the stone slab may break during transport.
Precautions While Purchasing Granite Stone
Granite is a stone that is gaining popularity because of its hardness, ability to take good polish and wide variety of colors available in it. The following precautions should be taken while purchasing granite stone.
2) Check artificial coloring as it is a huge problem with stones now a days especially the black granite. Stone merchants rub industrial oil on the surface to intensify the color and creates a deep black and rich polish that wears off in matter of weeks.
3) Verify artificial color by rubbing with cloth dipped in kerosene oil or white petrol. If cloth brings black color then it is a fake color.
4) Also check the back of the slab for circular mark. These are made by kerosene cutter which is used to cut the block of granite slab. This shows that the cutting process is wrong. The granite slab should be water cut having no circular mark on the back of the slab.
Leave us a note if there is any thing else you would like to know.
1) Check patches on surface of discoloration, hairlines, cracks, deep pin holes on the surface. These signify a weak slab and will cause problem.