Some horses, especially older horses that are very relaxed, let their lower lip droop markedly. This is usually a normal finding. When these horses become more stimulated, the appearance changes. The key to this is that the appearance is symmetrical on left and right sides.
Because of corundum's hardness (pure corundum is defined to have 9.0 Mohs), it can scratch almost every other mineral. It is commonly used as an abrasive on everything from sandpaper to large machines used in machining metals, plastics, and wood.orundum from Brazil, size about 2 cm Ã 3 cm (0.8 in Ã 1 in). Corundum occurs as a mineral in mica schist, gneiss, and some marbles in metamorphic terranes. It also occurs in low silica igneous syenite and nepheline syenite intrusives.
Corundum is used more as an alloy to make advanced versions of other armors, such as banded-iron armor and plate armor.orundum ore is smelted with iron ore to make 1 steel ingot, so don't go crazy smelting all your corundum ore into corundum ingots unless you know you don't need steel (doubtful as some advanced armors and weapons require a steel ingot as well). To mine ores, you must have a pickaxe in your inventory.