Is marble good or man-made?
Natural marble texture is dense but not hardness, easy processing, carving and grinding, polishing and so on. Marble polished smooth and delicate, natural texture smooth, very high decorative. Marble water absorption is small, high durability, you can use 40-100 years. Natural marble sheet and profile material is an important material for indoor and furniture production. Natural marble has a fine texture, solid, polished as smooth as a mirror, texture more than granite stretch, beautiful. Compressive strength is higher (second only to granite), according to the different rock, up to 300MPa, water absorption is small, wear and deformation characteristics.
Natural marble is higher than artificial marble, and artificial marble may be more harmful than natural marble.
If the conditions permit to ensure that the real thing, or choose a good natural marble. Please remember that regardless of the choice of natural marble or artificial marble, must be selected real material, and selected to the harm of the harm to the human body is still quite large.
In nature, natural radioactivity is an objective reality, the same, natural stone products also exist radioactive, the key is to see whether it exceeds the national standards. Marble is from the sedimentary rocks in the limestone by the temperature and pressure and other external factors from deterioration. Because of its composition of calcite and dolomite radioactivity is generally very low, so by the low radioactive limestone metamorphism of marble, radioactivity is also very low. Natural marble radioactivity is generally low, you can rest assured that use.
