One form of agglomeration of fines (iron ore fines, flue dust, mill scale, limestone and dolomite fines) produced by Mines and Steel Plants, by heating at lower temperature till clinker like aggregate is formed which is well suited as a blast furnace feed Skelp Steel that is the entry material to a pipe mill It resembles hot-rolled strip, but its properties allow for the severe forming and welding operations required for pipe production
A porous deposit formed in hydrothermal areas by the precipitation of amorphous opaline silica from silica-saturated waters erupted from geysers and derived from hot springs
Heat and press powder to form a solid object Powder is heated to a temperature below its melting point The combination of heat and pressure weld the individual particles into a strong solid
Any form of of hot spring deposit regardless of chemical composition See also siliceous sinter Sinter deposits form the characteristic gray rock formations seen in the geyser basins
v. Mineral deposit with a porous or vesicular texture (having small cavities). Siliceous sinter is a deposit of opaline or amorphous silica that occurs as an incrustation around hot springs and geysers and sometimes forms conical mounds (geyser cones) or terraces. Calcareous sinter, sometimes called tufa, calcareous tufa, or calc-tufa, is a deposit of calcium carbonate