BASALT PROPERTIESHardness: 5-6Composition: CaCO3Special quality: white bigPlace of origin: southeast ChinaFunctional use:Basalt is a great material for producing cast stone. Cast stone is made from basalt which get casted, crystallized and annealed. The

BASALT PROPERTIESHardness: 5-6Composition: CaCO3Special quality: white bigPlace of origin: southeast ChinaFunctional use:Basalt is a great material for producing cast stone. Cast stone is made from basalt which get casted, crystallized and annealed. The