Quartzite

Quartzite — the rock formed as a result of change of sedimentary or magmatic rocks under the influence of temperature, pressure and consisting generally of quartz. It is acidproof material, a construction and decorative stone. Quartzites - products of recrystallization of quartz sandstones and other siliceous deposits or replacement with quartz of breeds of other initial structure. Quartzite stone, unique on the properties. A stone riddle which secret is not solved still.

Quartzite - fine-grained breeds which were formed at recrystallization of siliceous sandstones and consist, generally of quartz. Happen gray, pink, yellow, crimson-red, dark and cherry and sometimes white flowers. Quartzite is considered very beautiful stone. The invoice of a skalyvaniye considerably clarifies the general background of a stone, than often use, combining it with a contrast color of the polished invoice.

Quartzite differs in very high hardness and belongs to the hardly processed materials, however gives in to polishing of very high quality.

Physical characteristics:

• durability on compression of 100 — 450 MPas,
• volume weight, average: 2,6 g/cm ³,
• density, average: 2,68 g/cm ³.

Durability: beginning of destruction of 150 — 300 years.