Iridian®

Primary Color: Gray, White

Quarry Location: Isle, MN

Absorption (ASTM C97): 0.07%

Density (ASTM C97): 165.2 lb/ft³

Compressive Strength (ASTM C170): 14,478 Psi

Modulus of Rupture (ASTM C99): 2,610 Psi

Company: Coldspring

 

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© National Building Granite Quarries Association, 2017