Audited Supplier
Keywords: black basalt,basalt tiles,honed basalt,black stone,Basalt stone,Basalto,Volcanic Stone,Lava Stone,Andesite Stone
Lava stone is a natural volcanic rock that is quarried, which contains many kinds of mineral materials, such as silicon, magnesium, nickel,etc.
Lava rock is the output of melted rock from volcanoes that has cooled down. The natural colors range from dark reddish to deep brown and black. Smaller rocks are used for a permanent mulch while larger ones are available as prominent landscaping features.
Volcanic stone has red, black, blue, gray, and so on. The colors vary in weight and the uses vary. It is a gas-rich melt slurry sprayed into the air to condense, the gas contained in it swells and escapes, leaving pores, forming a slag-like appearance, black, dark brown, and the pores are often irregular, round and oblong, and the size It ranges from a few millimeters to 10 centimeters and is distributed around the crater.
1.Shape
Shape: LAVA with hole;No pointed particle shape, small resistance to water flow, not easily blocked, uniform distribution of water and air, rough surface
2.Color
Color: Natural Red, black, blue, gray, and so on
3.Chemical composition of volcanic stone:
| SiO2 | CaO | MgO | Fe2O3 | Al2O3 | K2O | Na2O | FeO | CL-- | L.O.L |
| 52.54% | 8.57% | 2.49% | 10.00% | 17.00% | 2.50% | 2.93% | 1.36% | 0.01% | 4.95% |
| Bulk Density kg/m3 | Loose bulk density kg/m3 | Moisture % | Heat conductivity coefficient w/(m.k) | Water absorption % | Cylinder pressure strength Mpa | softening coefficient |
| 450-600 | 540 | <1 | 0.325 | 21 | 2.216 | 0.84 |
4.use of lava rock:
| Application | 1) Construction |
| 2) Water conservancy | |
| 3) Grinding | |
| 4) Filter material | |
| 5) Barbecue charcoal | |
| 6) Garden landscaping, | |
| 7) Soilless culture | |
| 8) Ornamental stone |
5.Size of Volcanic Stone
Size | 3-5mm |
5-10mm | |
10-20mm | |
20-30mm | |
30-40mm | |
30-50mm | |
50-100mm |
Contact information as follows:
Tel: 86-592-7075015
Fax: 86-592-5706624
Cell Phone:86-13959256081
Website:sunlightstone.en.made-in-china.com
