Petrographic Classification (Scientific Name): Porphiritic Quartz Syenogranite Test Value Obtained Standard Deviation Reference standards Densidade aparente seca 2.641 kg/m? 5 ASTM C-97; ABNT-NBR 12766/92 Porosidade aparente 0,44 % 0,02 ASTM C-97; ABNT-NBR 12766/92 Absor??o d