AMMO by MIG Pigments - Fine Pigment Powders for Modelling
Color: Concrete

From the Manufacturer:

A light grey color used to create the dusty appearance of broken concrete. High quality Pigment, superfine and made from natural products for exclusive use in modeling. This color is specially designed to make effects in your models using the techniques that Mig Jimenez created for more than a decade. Use it alone or in combination with other AMMO products.