crumbly
3.The crumbly residue left after a mineral or metal has been calcined or roasted.
4.The cycle repeated over and over again, building up a series of crusty, crumbly layers.
5.Because it reacts easily with oxygen in the air to produce crumbly red iron oxides.
6.A crumbly mixture of clays, calcium and magnesium carbonates, and remnants of shells, used as fertilizer for lime-deficient soils.
7.Prepare Almond Crumb Topping. In medium bowl, combine flour, brown sugar, almonds and cinnamon. Mix in softened butter until mixture is crumbly.
