Barium carbonate as a flux, a matting and crystallizing agent and combines with certain colouring oxides to produce unique colours not easily attainable by other means. Its use is somewhat controversial since some claim that it can leach from glazes into food and drink. To provide a safe means of use, BaO is often used in fritted form. In the brick, tile, earthenware and pottery industries barium carbonate is added to clays to precipitate soluble salts (calcium sulfate and magnesium sulfate) that cause efflorescence. Barium carbonate Barium carbonate (BaCO), also known as witherite, is a chemical compound used in rat poison, bricks,
Silver 'n Brass hard bop". Silver 'n Brass Silver 'n Brass is an album by jazz pianist Horace Silver released on the Blue Note label in 1975 featuring performances by Silver with Tom Harrell, Bob Berg, Ron Carter, Al Foster, Bob Cranshaw, and Bernard Purdie with an overdubbed brass section arranged by Wade Marcus featuring Oscar Brashear, Bobby Bryant, Vincent DeRosa, Frank Rosolino, Maurice Spears, Jerome Richardson, and Buddy Collette. The Allmusic review by Scott Yanow awarded the album 3 stars and states "Although there are tributes to Tadd Dameron ("Dameron's Dance") and Duke Ellington ("The Sophisticated Hippie"), the music is recognizably Silver