the degree of hardness of basalt stone

Polished Stone Value - Test Procedures and Equipment The gritstone group is excellent, with resistance to polishing being always high, whereas the lime stone and flint groups yield the lowest resistance. Other groups, basalt, granite and quartzite, yield intermediate results. Resistance to polishing of samples from the basalt group show a wide range. Engineering Properties of Stones and Tests on Stones ... Hardness is the property of a material to avoid and resist scratching. It is determined by comparison with the standard minerals of the Moh's scale. It is determined by comparison with the standard minerals of the Moh's scale. Basalt Rock Properties and Uses - ScienceStruck The rock hardness of basalt is 6 on the Mohs scale, and can be seen through a combination of its compressive strength: 100-300 Mpa (Megapascal), its tensile strength: 10-30 Mpa, and its shear strength: 20-60 Mpa, which denotes that depending on the mineral makeup, basalt rocks fall in the strong - very strong category.    Read More