Saw: The natural crystal in the forming process, often receives the environmental effect and always include some impurities, when view against the sun, you can see faint horizontal stripes or even small catkin-like material. But the fake quartz use more defective crystal residue, blizzard melting, after polishing process, color copy is made, there is no uniform stripes, catkin-like material.

Lick with tongue: Even if in hot summer days, lick the natural crystal surface with the tongue, also have the cold feeling, the fake quartz, not have cool feeling.

Illumination: The natural crystal vertical stroke places under the sunlight, regardless of which angle looks at it from, can emit the beautiful brilliance. The fake quartz cannot.