There are many kinds of quartz stone suppliers in the global market, among which some of them always use granite stone to pretend to be quartz stone to cheat most customers. Today, let us get some tips to identify the quartz stone and granite stone.

1. From the material

High quality quartz stone always is composed of 94% quartz and 6% resin, granite stone is made of marble powder and resin. So quartz stone is better than granite in hardness. Quartz stone countertops are resistant to wear and scratch, no obvious trace and crack within 10 years of regular use, while granite stone is weaker than quartz stone.

2. From environmentally-friendly effect

Quartz stone of no-radiation will not be harmful to people’s daily life. Granite stone made of marble powder would be a little radioactive.

3. From using

Due to its composed material, quartz stone is heat-resistant, temperature under 300° can not influence quartz stone to make deformation and crack. Granite stone of many resins volume is easy to have deformation and appear to burn in hot condition.

Following are some highlights for homeowners to tell quartz stone and granite stone:

1. The density of quartz stone is higher than granite stone, when selecting, you can use one sample to test its weight. High quality quartz stone will feel heavier, sample quartz of 10x10cm is about 0.5 kilo.
2. Use normal knife to cut the sample edge for several times, quartz stone will not have powder while granite would have.
3. From Smoothness, when exposed to natural light, quartz surface looks clean and clear, granite stone may be a little muddy.
4. Remember to look at the tips, whether there is quality certificates, phone number, logo and so on.
5. High hardness quartz stone is hard to make into complex shape, granite stone has no limits.
6. Bright-color quartz stone is difficult to be imitated by granite stone, that is also its advantage.