... (groove) 3>Usage:wall,garden stone Yellow Mushroom Stone1.Meterial: limestone, yellow limestone, bluestone, G603 2.Specification:300x300mm ... or any other customized size 3.Surface:mushroom,flamed, bush-hammered, sawn etc 4.Usage:kerbstone,garden stone ... .S)189.66Mpa3Modulus of rupture(M.R)15Mpa4Water absorption(W.A)0.375Density(B.D)2.7g/cm3