Volcanic stone is a functional environmental friendly material. It is a porous stone formed by volcanic lava, minerals and bubbles after volcanic eruption,

Volcanic stones contain dozens of minerals and trace elements such as sodium and magnesium. The stone can be used in construction, water conservancy, grinding, filter material, barbecue, landscape architecture, soilless cultivation, ornamental and other fields, and play an irreplaceable role in many aspects.

【Uses】

Water refreshing and water quality stabilizing. Color induction. Adsorbent. Props for playground. Promoting metabolism. Optimizing growth. Cultivation f nitrifying bacteria. Substrate material for water grass.

【volcanic stone sizes】

1-3mm，3-6mm，5-8mm，1-2cm，2-4cm，3-5cm，5-8cm，10-20cm

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