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 Inc. Granular Inc. Granular Inc. is a San Francisco-based company that develops and markets farm management software. The company's software allows farmers to manage operational and financial data on a single cloud and mobile platform. As of 2016, Granular raised $25 million in venture funding and acquired the farm valuation platform AcreValue. Granular is a spinoff of the company Solum, which was founded in 2009. In 2014, Monsanto acquired half of the business, which focused on soil testing and was merged with Climate Corp. The remaining half of the company was spun-off into Granular. After the split, Granular raised $4.2 million