Item Details
Quarry Location:
Minas Gerais
Water Absorption:
0.207 %
Density:
2736 kg/m3
Flexural Strength:
30.9 - 76.1 MPa
Recommended Usage:
Building stone, roof tiles, fireplaces, stairs, countertops, sinks, monuments, pool coping, sills, o
Finishing Surface:
Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge
Additional Names:
Cinza Ardosia, Brazil Grey Slate, Ocean Grey Slate
Description:
Ocean Grey Slate
Natural Cleft/Calibrated
Recommended application: Interior/Exterior
CHEMICAL ANALYSIS
Calcinations loss…….2,6 %
Silex…….63,8 %
Iron Oxide…….6,4 %
Aluminium Oxide……..18,7 %
Calcium Oxide…….1,0 %
Magnesium Oxide……2,3 %
Potasium Oxide…….3,2 %
Sodium Oxide…….1,8 %
Sulphates expessed as SO3…….Inf. 0,1 %
TECHNICAL ANALYSIS
Visible volumetric mass…….. 2736 KG/M3
Absorption coefficient……. 0,207%
Breaking load through indirect stress by bending…… 76,1 MPa
Breaking load through indirect stress by bending after cooling…….. 30,9 MPa
Wear by attrition: abrasion coefficient in tribometer……. 6,50 MM
OBS.: 1 MPa = 10,2 Kg.f / Cm.2