Red brick dust is made from pulverized bricks and results in a powder which can be used for spells of protection. It is believed that the use of red coloured powders and minerals originates back to early humans use of red ocher as a sacred and protective colourant. Red brick dust continues this tradition and it is added to powders and sprinkled in mojo bags for protective purposes. Red brick dust is also commonly used to make a line across the threshold of the house to keep away unwanted people!