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Porfido Kern

Category Porphyry
Location Italy
Secondary color Marrone - ocra
Aspect Macchiato medio
Grain Grana fine
Utilization Interni e/o Esterni
Dimension 1
Geological designation riolite (porfido quarzifero)
Bulk density 2555 kg/m
Imbibition coefficient 6,53%
Compressive strength 2830 kg/cm2
Bending break 22,5 MPa
Normal elasticity modulo elastico tangente Et:66180 MPa; modulo elas
Coefficient of thermal expansion 5,55 10-6 (elevato alla seconda)/?C
Frost resistance compressione monoassiale dopo gelitivit?,valore me
Impact strength altezza minima di caduta,valore medio: cm 62
Wear resistance valori relativi rieriti al granito di S.Fedelino:
Knoop microhardness valore medio 5416 MPa

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Description