phosphorus in apatite

Phosphorus Forms Present in the Soil

Examples of primary phosphorus minerals include apatite, strengite, and variscite. The secondary phosphorus minerals include calcium (Ca), iron (Fe), and aluminum (Al) phosphates. The release of phosphorus from this pool is extremely slow and occurs when the mineral weathers and dissolves in soil water.

Synthetic apatite nanoparticles as a phosphorus fertilizer …

Agriculture is the major user of mined phosphorus (P), accounting for 80–90% of the world demand for P 1.Increasing population, growing preferences towards meat-based diets and rising demands ...

Phosphate Rocks | IntechOpen

Apatite is the most abundant phosphate mineral which include more than 95% of al phosphorus in the Earth´s crust. The seventh chapter of this book provides brief description of sedimentary and …

Apatite Mineral Data

Phosphorus 18.25 % P 41.82 % P 2 O 5 Hydrogen 0.07 % H 0.59 % H 2 O Chlorine 2.32 % Cl 2.32 % Cl ... Apatite Robertsite Carbonate-hydroxylapatite. Comments: Black crystals of Robertsite on pink carbonate-hydroxylapatite. Location: Tip Top mine, Custer, ...

Struvite and Triple Phosphate Renal Calculi

The relationship between infections and renal calculi has been known since the time of Hippocrates, but it was not until 1817 that Marcet identified the connection between urinary alkalinity, infection, phosphate calculi, and increased urinary ammonia. In 1901, Brown first suggested that urea splitting bacteria activity increased urinary …

Trace Element Content and Partition in Apatite Group …

Phosphorus is obtained from the mining of phosphate rocks, mainly the mining of minerals belonging to the apatite group; these ores represent a limited and non-renewable resource [].The composition of apatite, alongside its complex substitution scheme, affects not only the obvious phosphate grade attainable in a concentrate, but …

(PDF) Phosphorus removal by apatite in horizontal flow …

The maximum phosphorus retention capacity was found to be approximately 7.4 g PO4-P/kg of granulated apatite. The study revealed low kinetic removal rate coefficients.

The role of intracellular calcium phosphate in osteoblast

To investigate the relationship between intracellular calcium phosphate accumulations and extracellular bone apatite formation, we cultured mouse calvarial osteoblasts and marrow stromal cells (MSC) in osteogenic medium according to standard in vitro methods for bone-like nodule formation ().We have previously demonstrated by multivariate analyses of …

Introduction to Apatites | IntechOpen

Since, apatite (fluorapatite) is the most abundant phosphate mineral, apatite bearing phosphate rocks represents an important source of inorganic phosphorus. First chapter of this book introduces the basic …

Which Minerals Include Phosphate?

Reimphoto / Getty Images Apatite (Ca 5 (PO 4) 3 F) is a key part of the phosphorus cycle. It is widespread but uncommon in igneous and metamorphic rocks. Apatite is a family of minerals centered around fluorapatite, or calcium phosphate with a bit of fluorine, with the formula Ca 5 (PO 4) 3 F. Other members of the apatite group have …

(PDF) A key role for iron-bound phosphorus in authigenic apatite …

The dominant sedimentary phosphorus forms were detrital apatite P and Al-bound p, whereas the amount of Fe-bound P was low because of anoxic condition. Based on the correlation between TP ...

Apatite weathering and the Phanerozoic phosphorus cycle

The weathering of apatite, the primary phosphorus sink in Earth's exosphere, controls long-term phosphorus availability. If phosphorus is the ultimate controlling nutrient over geologic time scales, then long-term marine NEP is coupled to the release of phosphorus from apatite weathering. The most abundant apatite compositions found in …

Apatite: Its uses as a mineral and gemstone

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Apatite Meaning and Properties | Beadagebeadage

Microbial sequestration of phosphorus in anoxic …

Phosphorus is removed from the ocean by sedimentation of organic matter, and the subsequent conversion of organic phosphorus to phosphate minerals such as apatite, and ultimately phosphorite ...

APATITE AND ROCK PHOSPHATE Indian Minerals …

APATITE AND ROCK PHOSPHATE 1 Apatite and Rock Phosphate A patite is a group of phosphate minerals and named by German Geologist Abraham Werner in 1786. It is the most abundant crystalline phosphate mineral found as an accessory mineral in practically all kinds of igneous rocks. Sometimes, it is concentrated in pegmatites, metallic veins and

Phosphorous-solubility in carbonatite melts: Apatite …

We model apatite-saturation in carbonatite melts based on a compilation of experimental data ranging from 650 to 1430 °C and 1 to 60 kbar. The data show a very …

Transformation of amorphous calcium phosphate …

The growth of apatite crystals from amorphous calcium phosphate is an area of intense study. Here, the authors report on the use of high resolution TEM imaging to provide evidence of nucleation ...

Introduction to Apatites | IntechOpen

Apatite is the generic name, which was first introduced by German geologist A.G. Werner. These minerals and their synthetic analogs represent a major class of ionic compounds and the most common …

Apatite

As stated, apatite formed by the hardening reaction of calcium phosphate is low-crystalline apatite, compared with the sintered apatite which shows high crystallinity. However, the effect of crystalliity on the solubility is limited when compared with the effect of composition. In fact many elements are known to affect the solubility of apatite.

Phosphorus Fertilizer: The Original and Commercial Sources

Earlier the original source of phosphorus (P) fertilizer was bones; as time passes, the supply of P fertilizer will get exhausted. Today, rock phosphate is the only raw material in the form of P fertilizers. There are two types of rock phosphates: igneous and sedimentary; both have the same phosphate mineral, i.e., calcium phosphate of …

Sustainable phosphorus management in soil using bone apatite

Soil fertility and phosphorus management by bone apatite amendment are receiving increasing attention, yet further research is needed to integrate the physicochemical and mineralogical transformation of bone apatite and their impact on the supply and storage of phosphorus in soil. This study has examined bone transformation …

Apatite | Phosphate, Calcium & Fluoride | Britannica

Apatite is a member of a group of structurally related minerals having compositions symbolized A5 ( B O 4) 3X, in which A is a metal, commonly calcium or lead; B is phosphorus, vanadium, or arsenic; and X is …

A key role for iron-bound phosphorus in authigenic apatite …

A combination of pore water and solid phase analysis was used to determine whether authigenic carbonate fluorapatite (CFA) is currently forming in the sediment at two locations (OMEX I and II) on the North Atlantic continental platform Goban Spur (southwest of Ireland). Results of selective P extractions suggest that an early diagenetic …

(Ca-Y)-phosphate inclusions in apatite crystals from …

Here, we report the first occurrence of two (Ca-Y)-phosphate phases in apatite crystals from ancient rocks from both the Barberton greenstone belt and the Pilbara Craton. First, a cubic Ca 3 Y(PO 4 ) 3 phase was observed in a sample of silicified tuff from the Mendon Formation from the Barberton greenstone belt.

Apatite: The mineral apatite information and pictures

Apatite is the most common phosphate mineral, and is the main source of the phosphorus required by plants. The bones and teeth of most animals, including humans, are composed of calcium phosphate, which is the same material as Apatite. (These biological Apatites …

Utilization of Apatite Ores | IntechOpen

Phosphate rock is an important mineral commodity used in the chemical industry and production of food. The first section of ninth chapter of this book introduces utilization of apatite ores for manufacturing of phosphorus. The second part deals with production of phosphoric acid via wet and thermal process and utilization of byproducts …

A phosphate-rich marine reservoir in the redox stratified …

Phosphorus (P) is the key nutrient thought to limit primary productivity on geological timescales, and hence P bioavailability exerted a major influence on Earth's surface oxygenation dynamics ...

Solubilization of Phosphorus from Apatite by Sulfuric Acid …

The phosphorus (P) present in apatitic materials is largely in forms that are not readily available for most arable crops. Many attempts have been made to increase the dissolution of phosphate rock. Hence, soluble P or superphosphate used as fertilizer has been produced by the industrial acidification of apatite (Becker, 1980).

Sustainable phosphorus management in soil using bone apatite

Bone apatite provides a slow and steady dissolution of phosphorus after soil application in comparison with rock mineral fertilizer ( Zwetsloot et al., 2016 ). Thus, bone apatite has been proposed as a sustainable fertilizer with long-term benefits, especially when integrated into waste management and recycling.

Biogenic apatite in carbonate concretions with and without …

Phosphorus (apatite), which was the focus of this study, is high in the center of the concretion and decreases toward the outside (Fig. 3).