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How to Distinguish the Authenticity of Quartz Stone?

Aug 11, 2018

Many households often choose quartz stone as the main decorative material when they have high hardness requirements. However, the quality of quartz stone plates on the market is uneven. Consumers often don't how choose. Here are some methods to quickly distinguish the authenticity of quartz stone:


No.1: Soak test with hydrochloric acid or the like.

In order to maximize profits, some quartz stone manufacturers will mix some calcium carbonate in the raw materials before the production of quartz stone . The calcium carbonate  reacts with the acid. If such a countertop is purchased, the countertop is easily changed in the later use. Therefore, when purchasing, you can take a sample and put it in dilute hydrochloric acid or other acidic liquid to soak. If the product contains calcium carbonate, it will react with the acid and appear bubbles.


No.2: Test the stain resistance.

The surface and internal structure of high-quality quartz stone plate are fine and uniform, with low water absorption and strong resistance to permeation; while inferior quartz stone is often limited to the appearance of similar.   The internal structure is loose and porous. It is weak in penetration resistance, and water absorption. When purchasing, you can pour the soy sauce on the quartz stone plate to see if the soy sauce will be absorbed by the stone. The inferior quartz stone countertop will absorb the soy sauce within 1 day, but the high-quality quartz stone will not.


No.3: Check the wear resistance with a knife.

The main component of quartz stone plate is silica, which has high hardness. The quartz stone on the market generally has a quartz content of more than 90%. Therefore, the possibility of occurrence of breakage is very small and relatively wear-resistant. Inferior quartz stone quartz sand is of poor quality, high impurity content, low surface hardness, and easy to scratch. When purchasing, you can try to draw a stroke on the board with a knife or the like.


No.4: Check the heat resistance with fire.

The quality of the resin used in inferior quartz stone is poor, the content is high, and the heat resistance is also reduced. Therefore, you can burn the sample with a lighter, and then see if there is a burn mark on it.