Granite and Marble

2023-04-03 16:51:44 9

Stone name: Granite

Density: 2790-3070kg/m³

Compressive strength: 1000-3000 kg/cm2

Elastic modulus: 1.3-1.5x106 kg/cm3

Coefficient of water absorption: 0.13 %

Shore hardness: HS 70-95(high value can reach 110)

Mohs hardness: Mohs6-7

Proportion: 2.6～2.75

Chemical composition: 67-76% SiO2,12-17% Al2O3,0.1-2.7% CaO,0.5-1.6% MgO,0.2-0.9% Fe2O3

Granite process types: axed slab,planed slab,roughing slab,burnishing slab

Stone name: Marble

Density: 2600-2800kg/m³

Compressive strength: 2500-2600 kg/cm2

Elastic modulus: 1.3-1.5x106 kg/cm3

Coefficient of water absorption: 0.5 %

Shore hardness: HS 35-55

Mohs hardness: Mohs3-5

Proportion: 2.5-2.7

Chemical composition: 50-75% CaCO3,anther is not sure,some has SiO2 and some not

Marble process types: roughing slab,polishing slab,grinding slab,A2 dealing