[Stone Hardness Tester] Rock Mohs Hardness Tester Mohs Cement Tile

Barang Preorder/Indent Estimasi 15-20 hari. DIY Supplies : ELECTRICAL Color classification : Carton packing No : 19-5-0130 Decoration and construction contents : Purchasing Main Material Mohs hardness tester definition: the hardness of minerals The hardness of minerals is called hardness. Two different minerals are generally scribed to each other to compare the relative hardness of minerals. German mineralogist Mohs this method of mutual characterization to select ten minerals as a measure of mineral hardness, called Mohs hardness tester. . The method of use is to use stone to scribe each other to compare the hardness. The strength of the characterization is not too big or too small, and moderate is good. For example, a mineral can burn calcite, but not fluorite, its Mohs hardness is between 3 and 4, and so on. Mohs hardness is only relative hardness and is relatively rough. For example, if you choose the seventh type of quartz (its hardness is 7 degrees), you can trace the tile of the product you want to test. If you use quartz to paint on the tile, you can mark the scratch, which means the quartz (7 degrees) ratio. The tile is hard. The tiles are below 7 degrees. Then you can continue to test with 6 degrees of feldspar, and so on. The hardness of this tile can be found. There is no proportional relationship between the numbers published in the Mohs hardness table. For example, a feldspar hardness of 6, does not mean that he is twice the hardness of calcite, the size of the number only indicates the hardness ranking. When the hardness is identified, if there is no Mohs hardness tester above, it can be replaced by other things, such as a knife with a hardness of about 5.5; a copper coin of about 3.5 to 4; a nail of about 2 to 3; and a glass hardness of 6. Usage: If there is a mineral of unknown hardness, it can be to scribe feldspar, but can not score