A History Of Diamond Mining

For Centuries the lone beginning known to adult male for diamonds were rivers. They were establish in active rivers or in the beds of rivers long ago dried up. In 1871 diamond bagpipe were discovered in South Africa. They were mined from kimberlite and lamproite volcanic pipes. Magma in these bagpipe brought the diamond crystals to the surface from deep in the earth. These crystals were formed by temperature and high pressure. Volcanic bagpipe are the primary beginning for diamonds.

The most commercially feasible diamonds ours of today are establish in Canada, Russia,
Australia, Botswana, The Democratic Democracy of Democratic Republic Of The Congo and Siberia. Diamond mineworkers are always searching for new rich diamond sedimentations the human race over. Unfortunately, diamond excavation is practically non-existent in the United States except for little sedimentations in Land Of Opportunity and Colorado.

In some of the unstable states of Africa, radical groupings have got taken over control of some of the diamond mines. They utilize the net income from the sale of the diamonds to finance their radical goals. Blood Diamonds is the term used for diamonds mined and sold in this way. The Kimberly Procedure was brought about in 2002 by The United Nations, the diamond industry and states who purchase diamonds, to struggle against these blood diamonds. The Kimberly Procedure guarantees that diamonds exported from these states are documented and certified and are not mined and acquired in this way. Only a little amount of these blood diamonds are able to steal through owed to this process.

The existent remotion of the diamond ore at a kimberlite mine site, begins with the gap of a cavity at the beginning of the pipe. The ore is then removed with hydraulic shovels and ore trucks. Hard stone is drilled and explosives are used to interrupt it up so it can be removed. Vertical shafts are often used as well when there is a rich ore deposit. Passageways are made to ramify off from the shaft so no ore is missed. This is just one type of mining.

After the ore is removed from the mine is it processed or sorted. One method of sorting is by using a wash pan. This method lets the heaviest diamond ore to settle down on the underside and the waste stuff material travels to the top. Density separations may be achieved by using cones and cyclones, lubricating oil tables, and x-ray separators. The concluding separations are done by the human eye.

Even after the sorted diamonds attain their prospective markets, either for jewellery shapers or industrial users of diamonds, they are sorted even more. The quality of a unsmooth diamond finally finds what it will ultimately be used for.

Diamond Carat Weight - One of the 5 C's of Buying Diamonds

This is the premier determining factor in the terms of a diamond. As you might expect, the larger the diamond, the more than expensive it will be.

Carats are units of measuring of weight measurement. They are used to mensurate most cherished stones, because of their ease. A carat bes 200 grams, and do expressing rock weight much easier than using grams. Instead of having to label 3 diamonds with weights of 200 milligrams, 207 mgs and 213 milligrams, the carat supplies classes for diamonds to suit into, placing all of these diamonds in the 1-carat range.

Something to maintain in head is that a higher carat weight makes not always interpret to a bigger looking stone. Even among rocks of the same shape, other factors (especially cut) can greatly act upon the perceived size of a diamond. A cut that gives a diamond a big tabular array (the uppermost level surface of a diamond) will do a little diamond expression bigger. However what you acquire in perceived size, you lose in brilliance.

Oppositely, a diamond that is cut broad at the girdle (a diamonds widest point) will do a big rock expression smaller. There's not much benefit to the overall visual aspect of the diamond with this sort of a cut, unless you are specifically looking to do a big rock look littler (which is a rare case, indeed).

An of import factor in choosing a diamond is the size of the finger that volition be wearing the diamond. For person with thicker, wider fingers, it might do sense to pass other money to acquire a bigger diamond that is cut to maximise its perceived size. A little diamond will look even littler worn on big fingers. The antonym is also true. Person with especially slight fingers can acquire other milage out of a littler diamond.

The current cost dislocation of the carat scale of measurement looks approximately like this: a diamond with a lucidity evaluation of SI1 and colour of Gram at .50 carats will travel up approximately $1,100 per carat when raised to the adjacent carat class (.70 - .89 carats). In the adjacent carat scope (.90 - .99 carats) the terms will travel up an further $800 per carat. In the 1.00 -1.49 carat range, the terms per carat rises by about $800 per carat. Another $1,200 per carat is added in the scope of 1.50 - 1.99 carats.

Gems - Information, History and Folklore - Page 1

Throughout the centuries jewelry has been created and worn by people of different cultures. Every culture had it gemstones that they valued and they attributed a special meaning to each. Today the list of precious and semi-precious gemstones is very large and each one has a history and folklore associated with it. The Quality Jewelry Directory has created a list of the most popular gemstones and gives a brief outline of each.

Alexandrite: One of the most valued and sought after gemstones is Alexandrite. Born in metamorphic conditions that bring together specific chemical elements to produce the mineral chrysoberyl, the gemstone has been valued by jewelers throughout the ages for its unique ability to change color from green to shades of red or very soft purple when exposed to daylight and incandescent light. Russia is the primary source for most gem quality alexandrite and was named after the Russian Tsar Alexander II. With a rich folklore history, alexandrite was thought to impart wisdom, creativity and to strengthen a individuals insight. Listed on the Mohs Scale of Hardness at 8.5, it is a perfect gemstone to design into high quality jewelry.

Ruby: Ruby is a beautiful gemstone that is part of the mineral family corundum. Corundum is found within crystals of metamorphic rock and is considered to be the second hardest mineral next to diamonds. Corundums come in different varieties and can be considered a sapphire in different colors. Some of the best rubies are in true red and come from Burma. They can also be found in other areas throughout the world, such as Australia, Kenya, Pakistan, Sri Lanka and the United States. With its well known sturdiness, it makes a perfect gemstone for jewelry. Often set with sapphires and diamonds, it is a perfect stone to pair up. The ruby was thought to have mystical powers and was often worn as a Talisman to ward off great evil. The ruby's color was often associated with blood and was thought to have the ability to stop bleeding and to heal ailments associated with it.

Sapphires: Sapphires belong to the mineral family of corundum and are found in weathered alluvial deposits from pyroclastic flows. Most sapphires are blue stones which range from slight blue to a deep indigo coloration. The most valued of the sapphires are ones that have the medium blue coloration and these are referred to "cornflower blue". Sapphires come in many colors and these are often called "fancy sapphires". Only in the case of red, are corundums called rubies. Sapphires are found throughout the world but primarily in Australia, United States. Sri Lanka, Thailand, Burma, Kampuchea, Kenya and Tanzania. The name "sapphire" comes from multiple sources. In Persian, it is "safir" and was associated with Saturn. In Latin, "sappheiros" for the island where sapphires were mined. Ancient folklore is rich with stories related to sapphires. Seen as a stone that changes its hue when the wearer was engaged in impure behavior, it was given to the wearer to help impart fidelity. Also thought to bring inner peace to the soul and spiritual enlightenment.

Amethyst: Amethyst is a purple colored gemstone that is from the mineral "quartz" and derives it beautiful purple color from the iron impurities within the crystal. Throughout the world, amethyst is primarily found in Mexico, Brazil, Canada, Uruquay, Madagascar and Australia. Amethysts occur as long prismatic crystals that form six-sided pyramids end to end and grow in druzes within crystalline crusts or in sandstone formations. Amethysts are believed to bring the power of peace and calm and are often used in meditation. Due to its rich color and calming effects it is used to relieve stress from every day work and to relieve headaches due to tension or migraine headaches. Amethyst is often seen to encourage deeper understanding, encourage love and awareness. Amethyst was often worn to bed to produce and encourage peace and beautiful dreams. Amethysts are adorned in some of the richest displays of jewelry such as the British Crown Jewels. Catherine the Great was very fond of amethyst as were the Egyptians.

Pearl: Pearl is the modern birthstone for the month of June. The beautiful pearl is the only gem that is created from a living organism, the oyster. The process of pearl formation is actually a reaction to an irritant within the oyster itself. This irritation causes a material called nacre to envelope the irritant and over time creates a beautiful pearl. Pearls come in different varieties such as cultured pearls, freshwater pearls, tahitian pearls, black pearls. Other varieties of pearls are barogues which display an irregular appearance and Mabe pearls that are cultivated blister pearls. The name "pearl", comes from the latin word, "perula" or small pear. The Chinese were the first to cultivate pearls in saltwater, but over the years they were cultivated in saltwater and freshwater alike. Today, some of the finest cultivated pearls come from Japan. Pearls are associated with purity, wisdom through experience and perfection.

Emeralds: Emeralds are actually the green version of the mineral beryl. This type of beryl contains small amounts of chromium and iron which give them their unique color. Emeralds are commonly found in sedimentary rock that has undergone changes in temperature and pressure. Emeralds can be found in the Russian Federation, United States, Pakistan, Norway, India, Malagasy, and Australia. Some of the best emeralds are found Colombia and these crystals exhibit the best quality for their size. The name emerald comes from the Greek term "smaragdos", which loosely translates to "green gemstone". The quality in the emerald is determined by it's clarity and it's deep grass green coloration which exhibits a slight hint of blue. Emeralds have a deep history and folklore. The history of emeralds can be traced to the ancient Babylonians and the Egyptians where tools have been found in ancient emerald mines where the Queen Cleopatra's emeralds originated. The Incas also mined emeralds and the largest and highest quality stones were once worn by nobility. Unfortunately, many emeralds were lost to time, due to invasions, greed or through the inclusion of these gems in private collections.

Diamonds: Diamonds are the hardest known natural material and have other qualities that make the diamond a true king of gems. Based upon the element "carbon", diamonds are actually similar to graphite, but like carbon they have a unique crystalline composition. The dense atomic structure of diamonds makes them extremely valuable in jewelry but also in modern day industrial applications. Diamonds are formed deep underground where pressure and temperature are critical for their formation. In ancient times, India was the only known source of diamonds, until after the 1800 century, deposits were discovered all over the world. Diamonds come from a variety of sources but the primary deposits are from large openings in the Earth called volcanic pipes. These are often called kimberlite pipes. The vast majority of all diamonds originate in Africa but other significant finds have been discovered in Russia and in the northwestern territories of Canada.

Turquoise: One gemstone that is very popular is turquoise. Turquoise is a copper aluminum phosphate mineral that is found in locations that have high concentrations of copper. Turquoise is created from a variety of natural process and is found in areas that are arid in climate. These climate conditions are important in weathering and oxidation of copper deposits and producing the conditions that support the creation of turquoise. Turquoise can also be created from hydrothermal actions, leaching and precipitation of surrounding copper deposits to form turquoise. Turquoise comes in variety of shades such as blue-green, and green with flecks of gray with traces of iron and chrome. The best quality turquoise is "sky blue" or often called "robin egg" blue. Turquoise is found throughout the world, but comes primarily from the United States, Iran, Afghanistan, China and Mexico.

Topaz: Topaz is a silicate mineral that has been used as a gemstone for centuries. Topaz is considered the hardest of silicate minerals but has interesting properties that make it similar to diamonds in its ability to be cleaved into smaller increments. Unlike diamonds, the crystals of topaz can come in very large sizes. Topaz is usually found in pegmatities, quartz veins and inside of granites and rhyolites. Topaz in its true form is clear, but can come in a large assortment of colors due to various impurities within the crystal lattice. These colors can range from red, green, orange, brown and yellow. Topaz in its natural state forms short or long multi-faceted crystals and is prized as a mineral specimen in its natural state. Topaz is located throughout the world but is primarily found in Russia, Australia, Africa, Mexico, Brazil and Pakistan and some of the best quality and prized topaz deposits are found in Brazil. Certain regions of the United States have topaz deposits, most notably in San Diego County and the Thomas Mountain Range in Utah which is renowned for its beautiful blue topaz.

If you are shopping for jewelry look to the Quality Jewelry Directory to help you find what you desire.

Additional information can be found in other areas of our website: Gemstones, Jewelry Cleaning, Birthstone information and Anniversary Stones.

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The following list is small breakdown of each gemstones history and folklore. The list is not intended to be the end all of gemstone information and should not be looked upon as such. Each gemstone has it's own mineral data, history and folklore and all data cannot be written about each one. It is recommended to seek other websites for deeper knowledge on each.