Andalusite is generally columnar crystals, with cross-section close to the square shape. The shape of aggregate Andalusite is radially or granular, commonly known as chrysanthemum stone. Andalusite color can be pink, rose red, red-brown or gray, vitreous luster, medium cylindrical cleavage. Morse hardness of Andalusite: 6.5 to 7.5, proportion: 3.15 to 3.16. Heating to 1300 ℃, Andalusite will turn into mullite, which is one of the raw materials to produce advanced refractories.
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| Andalusite |
After calcination, Andalusite can be made profiles that can be used for key parts of the stove, hot air tower, and then stir-fried, it can also be used for a variety of auxiliary casting and handling equipment, can also make the furnace facilities, high temperature aluminum silicate insulator, foundry mold fabrics.
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