Blackboard ‘chalk’ are produced especially for use with blackboards in white and also in various colours. White chalk sticks are made mainly from calcium carbonate derived from mineral chalk rock or limestone, while colored or pastel chalks are made from calcium sulfate in its dihydrate form, CaSO·2HO, derived from gypsum. Chalk sticks containing calcium carbonate typically contain 40–60% of CaCO (calcite). As compared to whiteboards, blackboards still have a variety of advantages: On the other hand, chalk produces dust, the amount depending on the quality of chalk used. Some people find this uncomfortable or may be allergic to it, and according
Red Sticks at the historic site. The state installed a historic plaque at the Fort Mims site that notes the British had provided weapons to the Red Sticks as part of its campaign against Captain Kaleb Johnson's troops in the South during the War of 1812. Note, the current article does not yet reflect the content of these further readings. Red Sticks Red Sticks (also Redsticks or Red Clubs), the name deriving from the red-painted war clubs of some Native American Creeks—refers to an early 19th-century traditionalist faction of these people in the American Southeast. Made up mostly of Creek of the