natural stone black grey basalt and lava stone

 natural stone black grey basalt and lava stone

1.lava stone is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey.

Introduction of volcanic stone:

•  It is a kind of precious and polyporous stone, and formed by volcanic glass ,mineral and air bubble in the process of volcanic eruption.
• It contains sodium, magnesium, aluminum, silicon, calcium, titanium, manganese, iron, nickel, cobalt, molybdenum, and other dozens of minerals and trace elements.
• Slide-proof, acid & alkali proof 
• Sound absorbing and insulation

Features of Volcanic Stone 

Application 

• Contruction
• Aquarium
• Grinding
• Barbecue
• Filter Medium
• Water Conservancy
• Garden Landscaping
• Soilless culture
• Ornamental products

Any more questions ,please contact with me