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All Field Marking Chalks Are Not Created Equal

► Differences in Marking Chalk Dry line products used for marking lines on ballfields usually come from one of two types of stone, limestone or marble. Limestone is a sedimentary rock while marble is a metamorphic rock that is formed when heat and pressure are exerted on a limestone deposit, such as during the formation of mountains, and the limestone transforms into marble. Both of these stone products are high in calcium carbonate, which helps to give these materials a white or off-white color. Dry line marking material that is produced from sedimentary limestone is… more
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