Graphite is the stable form of carbon, found at the earth’s surface. Despite the fact that they have identical chemical composition, the two minerals are drastically different. Diamond is the hardest known substance and is usually light colored and transparent, while graphite is greasy, easily powdered, and very dark in color. Diamond is the hardest gem on Mohs’ hardness scale and graphite is the softest. Diamond is very hard because of its dense packing and interlocking atomic arrangement.
It is named from a Greek word, Adamas, which means indestrucbility (O'Donoghue 1993, 104). Diamond is the known hardest mineral which have highest value 10 in the Mohs’ Hardness Scale. Diamonds are often obtained in transparent form, where blue, pale green, pink, violet, and raddish diamond are extremely rare (Cipriani and Borelli 1986, 74). It is one thought by many people that diamonds are formed from the metamorphism of the coal. However this is not the case.
Silicon has a strong affinity for oxygen. Pure silicon can be obtained by breaking down its combined form. It is prepared commercially by reducing (removing the oxygen from) the oxide by reaction with a carbon-based substance such as coke in electric furnaces. Some silicon is obtained by reducing silicon dioxide with aluminum. Amorphous silicon, prepared in the laboratory by heating silica with magnesium powder, is a dark-brown crystalline powder.
A Diamond is one of the two natural minerals that are produced from carbon. The other mineral is Graphite. Even though both of these minerals are produced from the same element ,carbon, they have totally different characteristics. One of the most obvious difference is that Diamond is hard and Graphite is soft. The Diamond is considered to be the most hardest substance found in nature.
From Element to Riches A diamond in a sense is the most communal, elegantly, used jewel used in circulation today. Do people in actuality understand the concept and edifice of this mineral? A diamond is known as the hardest rock in existence and to most of the world it is a piece of jewelry, but do we know what the chemical composition of a rock and how is it formed? A diamond in actuality is carbon in its most concentrated form. While a few diamonds may have trace impurities such as boron or nitrogen, most diamonds are composed mostly of carbon.
Its melting point is about 39˚c. its atomic number, with a density of 1533 kg.m. Potassium K with an atomic number of 19, also occurring as a solid at room temperature is so reactive that it will even react and burn a hole through ice Ceicium The wil... ... middle of paper ... ...readily combine with other ligands to form stable complexes. These elements are all unstable and very reactive due to atomic numbers above 83. Thorium and Uranium are the only actinides which occur naturally in the earth's crust.T Thorium With atomic number of 90, Th has a melting temperature of 1750˚C and a density of 11725 kg/m ᵌ.
Aluminum (Al) The Element The name comes from the Latin word alumen, for the mineral alum. The electron configuration is [Ne] 3s2 3p1. The element looks solid at room temperature and is a classification of other metals. Its crystal structure is cubic. Aluminum is not an element found in nature, it is found in the earth’s crust which is 8.2 percent of it.
There are other types of diamonds crystal forms which are tetrahexahedron and hexoctahedron. These two types were, incorporated into a sequence of apocryphal forms, which classify rounded surfaces of diamond crystals (Kvasnytsya 2013, 1). Moreover, the process of producing diamonds takes times as several hundreds of years. Types of diamond can either be igneous or sedimentary wise. Diamonds is actually a carbon-bearing mineral, carbon in its most concerted structure (diamond).The geological formation of the natural diamond obliges to particular exposures where certain pressure condition that is appropriate is being subjected to the carbon-bearing material to crystallize as diamonds plus comparative... ... middle of paper ... ...ochimica Acta 24 (1-2): 83-105. http://dx.doi.org.dbgw.lis.curtin.edu.au/10.1016/0016-7037(61)90009-6 Nowicki, Tom E., Rory O. Moore, John J. Gurney, and Mike C. Baumgartner.
It ranks amongst the rarest of metals. Consider this: for every 15 to 20 ounces of gold extracted, only a single ounce of platinum is mined. Unlike gold, which doesn't work well in its purest form, platinum is used in jewelry at 90–95% purity. Gold tarnishing is the slight corrosion of the gold surface and is evident as a dark discoloration of the gold item, also called a tarnish film. Gold alone or pure gold does not combine easily with oxygen so it stays shiny, it does not rust nor tarnish, again, that is pure gold.
The diamond is a carbon allotrope made up of carbons tetrahedrally bonded in a structure called a diamond lattice. The very rigid diamond lattice combined with strong covalent bonding leads to the diamond as having the greatest hardness of any naturally occurring material and the highest thermal conductivity of any bulk material. This quality makes diamonds valuable for its most common use, industrially. Although diamonds are best known for their use in jewelry, 80% of diamonds mined are used industrially. Diamonds are naturally produced in extremely high temperatures deep inside the earth’s mantle over extremely long periods of time.