How to Determine the Quality of Mongolian Black Stone
Mongolian black stone is becoming increasingly popular in interior design and construction projects. When selecting finished Mongolian black stone, there are several key factors you can consider to ensure you're getting a high-quality product.
First, examine the surface structure with your naked eye. High-quality Mongolian black stone typically has a uniform and fine-grained texture, which gives it a smooth and elegant appearance. On the other hand, stones with coarse or uneven grains may look less appealing. Additionally, natural cracks may form due to geological activity, and these weak points can lead to breakage over time. It's best to avoid such stones. Also, check for chipped edges or corners, as they can significantly affect the overall look, especially when used in visible areas.
Second, pay attention to the size and specifications of the stone. Properly sized slabs will fit together seamlessly, avoiding misalignment or distortion in patterns and lines. This ensures a more professional and visually pleasing finish. Fortunately, Mongolian black stone usually doesn’t suffer from color inconsistencies, making it a reliable choice for most applications.
Third, listen to the sound when tapping the stone. A high-quality stone will produce a clear, crisp sound when struck. If the stone sounds dull or hollow, it may have internal cracks or loose particles caused by weathering, which can compromise its durability.
Fourth, perform a simple test by applying a small amount of ink to the back of the stone. If the ink spreads quickly and seeps into the stone, it indicates that the material is porous or has internal gaps, which means lower quality. If the ink remains in one place without spreading, the stone is dense and well-structured, indicating good quality.
Additional Tips:
1. Always ask the seller for a radiation certificate when purchasing. Avoid buying stones without proper certification, and make sure the product meets Class A safety standards for home use.
2. When choosing between marble and granite, consider marble first. Generally, granite tends to have higher levels of natural radioactivity than marble.
3. In terms of color and radioactivity, the order from highest to lowest is: red, green, meat red, gray white, white, and black. So, if you're concerned about radiation, black stone is generally the safest option.
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