Histology, cytology and other related scientific disciplines study the microscopic anatomy of tissues and cells. In order to demonstrate a good tissue and cellular structure, the samples need to be stained in a correct manner. Rose Bengal powder dye is intended for microscopy staining using different methods. It is used in several standard microscopy methods for displaying bacteria in the ground and foraminifera in marine sediments. It is also used for marking Brucella antigens in agglutination tests for detecting brucellosis.