How is natural marble graded?
Dec 06, 2020
Natural marble slabs are divided into three grades: high-quality, first-class, and qualified products. The classification and identification of marble slabs are mainly identified through the detection of instruments and measuring tools.
Check appearance quality
Different grades of natural marble slabs have different appearances. Because marble is naturally formed, defects are inevitable. At the same time, the pros and cons of processing equipment and measuring tools are also the cause of sheet defects.
Select pattern color
Natural marble slabs are colorful, diverse in tones, and have different patterns. This is the precious charm of marble slabs.
Basically the same color tone, small color difference, and beautiful pattern are the specific manifestations of good varieties, otherwise it will seriously affect the decorative effect.
Detect surface gloss
The surface glossiness of natural marble slabs will greatly affect the decorative effect.
Generally speaking, the polished surface of high-quality marble slabs should have mirror-like luster, which can clearly reflect the scenery.
However, due to the different chemical composition of marbles of different qualities, even the products of the same grade will have a great difference in gloss.
Of course, the surface gloss of the same material and different grades will also have a certain difference. In addition, the strength and water absorption of natural marble slabs are also important indicators for evaluating marble quality.
