Basalt Rip Rap
Caco3 > 98% limestone from honduras in central america
SiO2 > 95 Rock
Mineral Name Chert
Iron Hydroxide
Strong even yellow color
Fe203 >10%
Natural Fly Ash Pozzolan
Hydraulic Index > 88 after 28d
Sum of 3 Oxides above 90
Mineral Class Rhyolite
Meet by Far ASTM 618