granites, marbles, stones, slates, tile, countertop
granites, marbles, stones, slates, tile, countertop
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
40 SRV, wet