Monazite

months later Georges Urbain, Pierre Weiss, and Felix Trombe discovered that gadolinium becomes ferromagnetic at about room temperature, which was the first pure element to show this property other than the three ‘classical’ metals iron, nickel and cobalt. Along with this discovery they also found that gadolinium becomes more ferromagnetic than iron but only at very low temperatures. Occurrence in Nature Gadolinium is relatively abundant in the earth 's crust for example it is as abundant as nickel and arsenic. Although they are abundant they are difficult to mine because they aren’t found in large quantities so it takes a very large mining operation in order to mine enough ground to find the element. It is mainly found in the minerals monazite and bastnaesite. Removing the element from these minerals can be a very long and difficult process. A couple of ways that the element can be removed from those minerals is through the use of ion exchange as well as solvent extraction. The ion exchange process was first developed during the Second World War as a way to separate fission products obtained from nuclear reactors. During this process a solution containing the rare earth is filtered through minerals called zeolites. These zeolites exchange ions as the rare earth ions bind tightly to the zeolites. Various solutions are then used to wash out the elements one at a time, each is then mixed with acid to create an oxalate compound. This compound is then heated to form a usable…

Holmium is a brilliant dim metal found in the lanthanide section on the periodic table, which is for the most part appeared at the bottom of the periodic table. This element has 67 protons in its nucleus, which implies it is the 67th component on the periodic table. Holmium is pliable, which infers it can be bowed and folded. It is the foremost magnetic component of the periodic table. The name comes from the element lanthanum. The lanthanides are also known as rare earth elements. Although…

India 's nuclear programme started on March 1944 and its three-stage efforts in technology were established by Dr. Homi Bhabha when he founded the nuclear research centre, the Institute of Fundamental Research. Bhabha drew up the blue print of the nuclear energy programme in India. Based on early geological surveys, he decided that the vast deposits of thorium in the monazite sands of Kerala could be harnessed for securing India’s long-term energy needs. Thorium is particularly attractive for…

Stonehouse pond was observed to be igneous rock, with evidence of batholith, an igneous specific type of intrusion that spans for miles at a time. This is evident in figure 8. Various minerals and a grainy texture were also observed. Because of this, and identification of minerals such as quartz, as observed in figure 6, and orthoclase, in figure 9, this rock was concluded to be the igneous rock, granite. Granite forms when magma under the Earth slowly crystallizes. Igneous rock forms when…

Sand Analysis 4th Quarter Research Paper By Danielle Ambalong (Block 6) Sand samples have been collected from Galveston Beach, TX; Clearwater Beach, FL’ and Key West, FL. Each sample has been sieved and analyzed. Because of the different locations of the sands, the composition is diverse, ranging from quartz to hornblende. This feature is determined by the parent rock, which is the source rock that has been eroded and deposited into the same area. This is usually where the sand originates.…

discovered were too faint for other scientists to acknowledge. Scientists also attempted to find the x-ray emissions of astatine in different mixtures of natural compounds, but, they too, were unsuccessful. Most notable among these other scientists is Rajendralal De who believed he discovered two new elements in Travancore monazite. One of these elements was astatine; which he called “dakin”. However, his research was not accepted by the scientific community as being valid. A new method of…