Crystal structure

Compare and contrast the crystal structures and crystal chemistry of quartz, α-FePO4 and β-FePO4. FePO4 is also known as Iron (III) phosphate. Iron (III) phosphate is an inorganic compound. Most of the FeP04 has the structure of α-quartz which is α-FePO4. It has a tetrahedral molecular geometry. α-FePO4 is present at pretty low degree Celsius. It is also a transition metal as it is in the d-block in the periodic table. It can be studied at many different temperature which range from 294K to…

In The Dark Crystal, directed by Jim Henson and written by Henson and David Odell, the protagonist, Jen, directly follows the seventeen steps of “the Hero’s Journey,” initially popularized by Joseph Campbell in 1949 and later adapted by Christopher Vogel, with one slight deviation. Jim Henson intentionally created the story to follow the format laid out by Vogel. The steps of this journey fit neatly into three acts: departure, initiation, and return. This follows Jen all the way from his home in…

iron phosphate, all the iron and all of the phosphorus are in tetrahedral coordination to oxygen. All of the iron and the phosphate are in tetrahedral coordinates. It also has a very open structure and has a lot of empty spaces. This means that as the temperature changes by neutron powder diffraction, the structure of the molecules would either expand or compress – the higher the temperature, the more the FePO4 will expand and vice versa. Hence, when looking at it at the right direction,…

urea and BUN in ethylene glycol (0.75%) induced urolithic rats. It also enhanced the urine pH, volume and magnesium content. The anti-urolithic activity was further evidenced by the histological evaluation, that is, decrease in the deposition of crystals in the kidney sections, tubular dilatation and necrosis. Soundararajan et al. (2006) study on the effect of Aerva lanata aqueous suspension reduced the urinary levels of stone promoters such as oxalate, calcium, uric acid, phosphorus and…

for synthesis of garnet Yttrium ferrite (Y3Fe5O12) was done by Bertaut and Forret in 1956 [39], this trial was followed by another one in 1957 when Geller and Gilleo prepared and investigated Gd3Fe5O12 [40]. The garnet ferrites have complex crystal structure with cubic shape. The cubic unit cell of garnet ferrites R3Fe5O12 contains 8 formula units or 160 atoms with O2 as widespread ions (96 ions). The trivalent rare earth ions (Y, Gd, Dy) consider a typical example for garnet ferrites (R3Fe5O12)…

chemistry and mathematical physics in 1925. Once he joined the Caltech faculty in 1927, he continued his research on the formation of chemical bonds between atoms in molecules and crystals. “In 1938, Linus wrote down everything he learned in a book called The Nature of the Chemical Bond and the Structure of Molecules and Crystals” (lpi.oregonstate.edu/about/linus-pauling-biography)…

interactions in ZnGa2S4 and CdGa2S4 crystal compounds. The aim behind adoption of PBE-sol exchange correlation technique is that it recoups the prime gradient expansion for exchange and jallium surface potential are exactly replicate by regulate its correlation piece also it is inadequate to forecast the wide range communication in atomic crystalline solids result in the form that total energy dependent properties is well agree with experimental one. For electronic structure calculation lattice…

Traces left behind at crime scenes can be studied in detail under the microscope. These include: Fingerprints, hair, blood, small fibers of clothing or carpets, and bullets. Fingerprints and hair structure are unique and will lead you to a person involved in a crime. Even small particles of sand tell you under the microscope where a suspect person has been. When a bullet is fired from a weapon it will get very tiny scratches. Comparing these scratches…

terms of the α and β, they β are actually very different in terms of the crystal structures and crystal chemistry of quartz. Based on the research article which was provided in coursera, it states that FePO4 is studied across a range of temperatures ; 294K to 1073K by neutron powder diffraction. The different range in temperature shows different structures. For instance, at significantly lower temperatures, it shows the structure of the α-quartz and at higher temperatures, it shows a β-phase. At…

On Saturday, November the 21st, I visited the Gypsum mine with my lab group: Luke Petro, Liz Morehead, and Kylie Hoef, along with several other groups. After procuring the necessary tools from the geology lab like a meter stick, rock hammer, flashlight, bottle of acid, and helmet, we set off to the mine. Located roughly 100 feet below the surface near Grand Rapids, the mine is now a storage facility owned by Michigan Natural Storage. In the mine, we measured the various rock columns to find how…