We are a manufacturer of stones in China, can supply you a new kind of stone-volcanic lava for decorative material. percent gas holes. It is hard and gray, neednt polish, can be honed only. As a kind of ideal decorative material, it makes the square, the tourist attraction, or the courtyard simple and unsophisticated, serious and solemn. It also can absorb the sound and dust indoor. The magma was brought to the surface of the earth when the volcano erupts, without the pressure; it cools quickly and form many gas holes. According as gas hole, the volcanic divided into tiny holes volcanic, small holes volcanic and big holes volcanic.The tiny gas holes, less than a millimeter, are regular, on the contrary, the smaller gas holes, about 5-15 millimeter, are irregular, and like honeycomb, the bigger gas holes are more than 15 millimeter. So it is also called honeycomb stone. SHANLU STONE is located in Haikou City, south China, and our stone material factory is around it. The tra... [Detail]