Moh's Hardness Crystalline Form Inflatable Models Help children explore and compare

Help children explore and compare fractions by building simple

Size: 260mm x 230mm x 70mm

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Moh's Hardness Crystalline Form Inflatable Models Help children explore and compareHoused in a compartmented collection box, and an identification list is included. 9 numbered samples, 1" x 1" streak plate magnet glass slide copper strip. Minerals: Talc, Selenite, Calcite, Fluorite, Apatite, Microcline, Quartz, Topaz, Corundum All samples are pure crystalline forms to ensure accurate test results. You can also perform other physical properties tests with the included materials. If you need custom order with different sizes design,