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Tuff

Volcanic tuff - top breed porous, rock type, which is the product of frozen lava of a volcanic eruption.Tuff is a solid mass formed by volcanic ash, sand, glass, quartz and others. Different types of tuff have different colors and different structures defining various characteristics. It has less volume weight, high heat and sound insulation, and is easy to process. High durability and unique look make it a unique building material used since the 3rd century.