Gray Miracema

Tiles (Natural/Natural)
Size (cm) Thickness (cm)
11,5x11,5/ 11,5x2311,5x11,5/ 11,5x23 1,0-1,6
15x15 1,4-1,8
15x30 / 20x20 / 23x23 1,5-2,0
20x40 / 23x47 / 30x30 1,8-2,3
37x37 / 40x40 2,3-2,8
30x60 / 40x60 / 47x47 2,8-3,3
 60x60  4,0-4,6
Slabs
Finishings Sawn/Sawn, Polished/Sawn, Flamed/Sawn, Honed/Sawn, Brushed/Sawn
Size (cm) Thickness (cm)
300x200 2,0 / 3,0
Tiles
Finishings Sawn/Sawn, Polished/Sawn, Flamed/Sawn, Honed/Sawn, Brushed/Sawn
Size (cm) Thickness (cm)
Free Lenghtx60 2,0 / 3,0
Steps
Finishings Sawn/Sawn, Polished/Sawn, Flamed/Sawn, Honed/Sawn, Brushed/Sawn
Free Lenght x >60 2,0 / 3,0
Technical Analisis
Petrographic Description NBR 12768/92 Blastomilonitic monzogranitic biotite-hornblend gnaisse
Dry Density (kg/m3) NBR 12766/92 2,726
Saturated Density (kg/m3) NBR 12766/92 2,734
Porosity (%)  NBR 12766/92 0,84
Water Absorption (%) NBR 12766/92 0,31
Flexural Strength (parallel to the rock orientation) (Mpa) NBR 12763/92 6,07
Flexural Strength (perpendicular to the rock orientation) (Mpa)  NBR 1763/92 12,25
Coefficient of linear thermal expansion (10 3 mm/m˚C) NBR 1765/92  6,4
Uniaxial compressive strength (icing / deicing) (MPa)  NBR 12769/92  143,1
 Resistance to uniaxial compression (natural) (MPa) NBR 12767/92  146,6
Resistance to abrasion (mm per 500m)  NBR 12042/90 1,26
Resistance to abrasion (mm per 1000)  NBR 12042/90  2,34