Volcanic stone commonly known as pumice stone, basalt stone, or lava rock, it is a kind of functional and environmental material. It contains dozens of minerals and microelements, such as sodium, magnesium, aluminum, silicon, calcium, titanium, manganese, iron, nickel, cobalt and molybdenum and so on.which are widly used to garden, floor, wall, plant, acqurium industry.

3-6mm,6-8mm,8-10mm,1-3cm,3-6cm,6-8cm,8-10cm,10-50cm can be customized.

lump, particle, powder, sheet.

red,black.