Calcite Mineral Specimen, Calcite Mineral Specimen is used in classroom identification labs, exercises, and lessons on chemical reactions., Pack of 12

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Here is the corrected text: Set of 12 Raw Calcite Specimens, approximately 1" in length. Calcite, composed of calcium carbonate, can form rocks, animal shells, chalk, and translucent, rhombic minerals. As one of the few minerals that effervesce in acid, calcite is ideal for demonstrating chemical reactions. This versatile mineral can also be used to demonstrate mineral hardness, light refraction, and cleavage. Each specimen will vary slightly in shape, size, and color. Individually packaged, labeled, and barcoded for easy identification and storage. Selected and processed by a geologist, each specimen is handpicked to exhibit defining features. Our rocks and minerals are sourced from various locations worldwide and are hand-processed in Victor, NY. Technical support is always available - feel free to reach out to our team of scientists and geologists for additional information or assistance with any questions regarding our rock and mineral samples.