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2025-09-21 11:41:12
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Robrato Porphyry

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About
Material Type: Porphyry
Origin:PortugalPortugal (Torrao, Alcacerdo Sal, Setubal)
Priamry Color(s): Red
Recommended Usage:Exterior - Interior wall and floor applications, countertops, mosaic, fountains, pool and wall capping
Additional Names:Torrao Granite,Porfido De Torrao,Porfiro Acido,Porfiro Acido Robrato,Robrato Lisboa,Portugal Red Porphyry,Porfido Rosso,Robrato Granite
Finished Surface:Honed, Aged, Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled
Testing
Water Absorption:0.12 By weight %
Density:2640 kg/m³
Flexural Strength:36.5 ~ 37.0 MPa
Compressive Strength:143.3 - 153.0 MPa
Description

Robrato Granite is a fine grained, red to dark brown colored with black grains igneous rock. 
Finishes available: Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge
Robrato Granite can be commonly used; Exterior wall and floor applications, palisades, cobbles, fountains, pool and wall capping, stairs, window sills, etc
Chemical composition
Siliziumdioxid:74,09%
Aluminiumoxid:12,67%
Eisenoxid:2,98%
Manganoxid:0,02%
Calciumoxid:0,90%
Magnesiumoxid:0,41%
Natriumoxid:4,08%
Kaliumoxid:3,78%

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