Silt semi-arid environments that substantial quantities of silt are produced. Silt is sometimes known as "rock flour" or "stone dust", especially when produced by glacial action. Mineralogically, silt is composed mainly of quartz and feldspar. Sedimentary rock composed mainly of silt is known as siltstone. Liquefaction created by a strong earthquake is silt suspended in water that is hydrodynamically forced up from below ground level. In the Udden–Wentworth scale (due to Krumbein), silt particles range between 0.0039 and 0.0625 mm, larger than clay but smaller than sand particles. ISO 14688 grades silts between 0.002 mm and 0.063 mm (sub-divided up into
Granular cheese content is 39 percent, and the minimum allowed milkfat content is 50 percent by weight of the solids. Regular granular cheese must either use pasteurized dairy products or be cured for at least 60 days at a temperature of at least 35 °F. Either cows' milk or cream may be used as the main ingredient. Other permissible ingredients include clotting enzymes such as rennet, coloring, calcium chloride as a coagulation aid, enzymes used in curing, hydrogen peroxide, and agents used to protect against fungi. The name granular cheese can encompass many types of cheeses; for example, Parmigiano-Reggiano is a granular