For years, Alliance Minerals has established its own quality standards and consistently applied these standards to every production step in order to supply the highest quality natural stone products to our customers.
Based on the different colors of stone, Alliance Minerals classifies its product quality in 4 grades:
Common defects on stone material include cracks (or fractures), patches (or blotches), bands, lines, color variations and pattern variations. The existence or size of these defects is the gauge to classify the quality grade of the stone products.
When people use stone for various covering applications in the interior or exterior area of the building, the stone needs to have finish on its surface. A finish on natural stone not only prevents damage or contamination from bacteria, it also uncovers the natural beauty of the stone for all to see. Different surface finishes can also lend significantly different textures to the stone and even change the perceived of the stone. Here are the descriptions of the surface finishes commonly used in stone industry.
An igneous stone formed from the cooling and crystallization of molten magma far below the earth’s surface. Granite is characterized by interlocking silicate mineral crystals which form over thousands and even millions of years. Granite is the hardest of the dimensional stones and exhibits an extremely high compressive strength. Granite can maintain a high polish for a very long time and resists a wide range of chemicals. It is ideal for use in commercial and residential applications as well as interior or exterior work.
Polar White marble and Arctic White marble are two of Alliance Minerals’ high-end marble products. These pure white marble products are quarried in the north of Vietnam, an area famous for its outstanding white marble reserves. Alliance Minerals’ focus on quality control has created a culture around providing premium products to our customers at a level of quality unsurpassed by our peers. To help you understand the impact of our quality control process, this article will give you some insights into our pure white marble products.