Rock phosphate powder, Particle Size : 100-200 Mesh

We are offering rock phosphate powder. We are among the leading suppliers of rock phosphate powder. Phosphorite, phosphate rock or rock phosphate is a sedimentary rock which contains high amounts of phosphate bearing minerals. The most important use of rock phosphate powder is in the production of phosphate fertilizers for agriculture. Rock phosphate powder is also used to prepare calcium phosphate nutritional supplements for animals. about rock phosphate the phosphate content of rock phosphate is at least 15 to 20%, which is a large enrichment over the typical sedimentary rock content of less than 0.2%. The phosphate is present as fluorapatit ca5 (po4)3f (cfa) typically in cryptocrystalline masses (grain sizes < 1 μm) referred to as cellophane. It is also present hydroxyapatite ca5(po4)3oh, which is often dissolved from vertebrate bones and teeth, whereas fluorapatite can originate from hydrothermal veins. Other sources also include chemically dissolved phosphates minerals from igneous and metamorphic rocks. Limestones and mudstones are common phosphate bearing rocks. Phosphate rich sedimentary rocks can occur in dark brown to black beds, ranging from centimeter sized laminae to beds that are several meters in thickness. Although these thick beds can exist they are rarely only composed of phosphatic sedimentary rocks. Phosphatic sedimentary rocks are commonly accompanied by limestone, dolomites and sometimes sandstone. These layers contain the same textures and structures as fine grained limestone and may represent digenetic replacements of carbonate minerals by phosphates. They also can be composed of peloids, ooids, fossils, and clasts that are made up of apatite. There are some phosphorites that are very small and have no distinctive granular textures. This means that their textures are similar to that of cellophane, or fine micrite-like texture. Phosphatic grains may be accompanied by organic matter, clay minerals, silt sized detrial grains, and pyrite. Peloidal or pelletal phosphorites occur normally; whereas oolitic phosphorites are not very common.