Alta Quartzite Natural Cleft Finish
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SURFACE | SIZE SUGGESTION | |
Natural Cleft | 300/600*F.L*15MM | 900*F.L*20M |
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Alta Quartzite was first deposited about 600 million years ago.
Within 200 million years of deep burial at extreme pressure and temperature , it became as it is today - a grey, metamorphosed recrystallised and highly strengthened quartzite with a slight greenish tone and a pale silvery mica shine along the riven surface.
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TEST | STANDARD | VALUE |
Petrografic analysis | Quartzite | |
Density | NS-EN 1936 | 2710 Kg/m3 |
Water absorption | NS-EN 13755 | 0.1% by weight |
Flexural strength | NS-EN 12372 | 34.3 MPa |
Abrasion resistance | NS-EN 14157(A) | 17.0 mm |
Slip resistance | NS-EN 14231 | 72 SRV, dry |