| Diamonds are still a girl's best friend,
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| | the other minerals
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| right? We love the shiny gems. They are
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| | retain a film of water, which prevents
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| the most popular rocks sold today. But
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| | the sticking to
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| what exactly are they, anyway? Where do
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| | the grease. Then the diamonds are
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| they come from? What else are they used
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| | removed from the
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| for?Diamonds are a mineral in one of the
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| | grease,
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| two crystalline forms
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| | cleaned, and graded for sale and use.The
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| of the element carbon. They are the
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| | earliest sources of gem diamonds were
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| hardest natural
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| | India and
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| substance man knows. Diamonds are sold
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| | Borneo.
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| as gems, and
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| | Some famous diamonds are the Great
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| used
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| | Mogul, Regent, and
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| in industrial applications for
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| | Pitt.
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| smoothing, cutting, and
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| | Other famous diamonds include the Hope
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| polishing hard materials.Diamonds are
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| | (blue), Dresden
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| most famous for crystallizing in the
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| | (green) and Tiffany (yellow). In the
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| common
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| | early 18th century,
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| colorless form. They may also be
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| | deposits similar to those in India were
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| tranlucent to transparent
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| | found in Brazil,
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| white, yellow, green, blue, or brown.
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| | mainly of carbonados. In 1867 a stone
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| Diamonds have a high
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| | found in South Africa
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| refractive index which is why they are
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| | was recognized as a diamond. Within a
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| so brilliant and
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| | few years began a
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| sparkly after cutting. The familiar
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| | wild
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| shape of the diamond is
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| | search for diamonds. In 1870-1871, dry
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| the octahedron.The most brilliant
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| | diggings including
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| diamonds become gemstones for jewelry
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| | most of the celebrated mines were
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| and
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| | discovered.Synthetic diamonds were
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| other uses. For those that don't make it
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| | successfully produced in 1955; a
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| to gems, there
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| | number of small crystals were produced
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| are other options. There is bort, which
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| | when pure
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| is a more poorly
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| | graphite mixed with a catalyst was
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| crystallized or undesirable color and in
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| | subjected to pressure of
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| fragmentary
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| | about 1 million lb per sq in. and
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| condition, and carbonados which is gray
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| | temperature of the order
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| to black opaque.
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| | of 5,000-F (3,000-C). Synthetic diamonds
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| Bort and carbonados are used as
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| | now are
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| abrasives for the cutting
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| | extensively
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| of
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| | used for industry, mainly due to the
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| diamonds and the cutting heads of
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| | ease of obtaining and
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| industrial rock drills.Diamonds are found
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| | lower cost for them. Diamonds are still
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| in alluvial formations and in volcanic
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| | very popular and
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| pipes, filled for most of their length
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| | symbolize many things. Their popularity
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| with blue ground or
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| | does not seem to
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| kimberlite, and igneous rock consisting
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| | be
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| primarily of
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| | dwindling any time in the near
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| serpentine. Diamond yielding earth is
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| | future.The author became fascinated with
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| mined by both the
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| | diamonds from an early
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| open-pit method and by underground
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| | age. She has studied diamonds and their
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| mining. After removal
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| | various uses.
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| to
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| | Without diamonds, many products that we
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| the surface, the soil is crushed and
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| | enjoy and use on
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| concentrated. Passing
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| | a daily basis would not exist.She
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| the concentrated material in a stream of
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| | consults with various industries
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| water over greased
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| | worldwide to help them
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| tables does the needed sorting. The
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| | to understand diamonds uses in their
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| diamond is largely
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| | manufacturing
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| water
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| | processes.
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| repellent and sticks to the grease and
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