### decoration | jewellery | jewel:

Diamond
* All Diamonds are rare,but some are more rare than others-and therefore more valuable.
* All diamonds are beautiful, irrespective of their colour
  - rare, but some are more rare than others - and therefore more valuable
  - have minute fractures and fissures
* Every diamond product of nature and is therefore unique.
* Many diamonds also conduct electricity well also
  - contain crystals of other minerals
* Most Diamonds have a trace of yellow or brown body color.
* Most diamonds are electrical insulators but extremely efficient thermal conductors
  - slightly yellow or brown, and are graded by how closely they approach colorless
* Most diamonds conduct conductivity
  - thermal conductivity
* Most diamonds contain inclusions such as mineral traces formed during the crystallization process
  - some inclusions that can only be seen under magnification
* Most diamonds contain tiny identifying marks called inclusions
  - inclusions that make each diamond unique
* Most diamonds contain very natural birthmarks known as inclusions
  - small natural inclusions
  - tiny birthmarks known as inclusions
  - tiny, natural birthmarks known as inclusions
  - visible non-diamond inclusions and crystal flaws
  - have a hint of yellow or brown
* Most diamonds have at least a trace of yellow or brown body color
  - trace of yellow or brown bodycolor
  - bonds
  - properties
  - rigid bonds
  - small inclusions, usually small spots of carbon
  - unusual properties
  - what gemologists call inclusions, or imperfections in their internal structure
  - range in colour from white, or colourless, to yellow
  - reflect light
  - show a little color
  - used as gems are transparent and colourless or nearly so
* Most diamonds used in jewelry appear white
  - are nearly colorless with faint yellow or brown tints
* Some diamonds are as large as three carats.
* Some diamonds are produced by chemical vapor deposition
  - conduct heat
* Some diamonds contain a strange, rectangular latticework of radiation-stained hollow tubes
  - natural internal black spots
  - have degrees
  - occupy vary habitats
  - owe their color to laboratory irradiation
* absorbs twice as much heat as copper per degree of temperature change.
* adorn the fingers, necks, wrists and earlobes of many people around the world.
* alone account for more than half of export earnings.
* also amplify the qualities of any other stone it accompanies
  - can withstand ultra-high pressures
  - come in unusual colours such as pink and green
  - occur in colors such as brown, orange, pink, etc
  - possess an extremely high refractive index and fairly high dispersion
* are Guinea's second largest export, after bauxite.
* are a commodity in world trade
  - crystalline form of pure carbon
  - geological marvel
  - mineral form of carbon but are very different from graphite
  - natural kind
  - naturally occurring mineral, one of two crystalline forms of the element Carbon
  - special, luxury item and are meant to bring pleasure
* are a type of crystal
  - rock
  - valuable export
  - wonder of nature
* are also Arkansas' state gem
  - highly heat resistant, but they can be burned if subjected to prolonged high heat
  - laser drilled and then filled with glass or some other substance
* are an example of a nonrenewable resource
  - important source of revenues to Angola, and are only second to petroleum
  - artifacts
  - blue
  - by far the most important source of income for Botswana
  - carbon, though they little resemble graphite, their elemental twin
  - certainly the most precious of all nature's creations
  - clears
  - cold to the touch
  - color graded by being compared to a set of master stones
  - colorless to a slightly yellow or brownish tint
  - common in today's engagement rings
  - concentrated by weathering
  - created by pressure
* are crystals formed almost entirely of carbon
  - out of carbon
  - crystals, crystals being the ultimate form of symmetry in nature
  - cut with water the softest substance always shapes the hardest
  - durable and the hardest material known
  - excellent conductors, and are cold to the touch
* are extremely hard and have a brilliant sparkle
  - hard, but also brittle and can be split up by a single blow
  - found in all colors, but diamonds most commonly occur in shades of yellow and brown
  - generally more valuable then amethysts
  - hard while graphite is soft
  - jewels
  - just carbon atoms arranged into a crystal structure, which very simple design
* are located in drill bits
  - jewellers
  - jewelry stores
  - mines
  - lumps of coal that have been under pressure for years
  - made of carbon
  - many millions of years old
  - materials
  - mined in Canada and Arkansas
  - more expensive than garnets because, among other reasons, they are more rare
  - natural resources
  - naturally available in almost every spectrum of the rainbow
* are one of the crystalline forms of carbon
  - few gemstones with a consistent supply
  - hardest materials known
  - particularly lucky when worn on the left side of the body
  - playing cards
  - precious stones
  - pure carbon crystals
* are rare and are found largely in Africa
  - elements
  - since only a few have ever made the tricky journey up to the surface
  - real family assets
  - semiconductor
  - slightly overlapping diamond-shaped blotches running down the middle of the back
  - so hard because of the shape of a diamond's structure
  - solids
  - special gifts due to their glamour, rarity, durability and beauty
  - stronger than graphite because they have a
  - synonymous with romance, engage-ments, weddings and enduring love
* are the dominant exploited mineral
  - gem-form of carbon crystals
* are the hardest known mineral
  - natural substance on Earth
  - material known to man
  - mineral in existence and are used as cutting instruments
* are the hardest natural mineral on earth
  - substance known to man
  - naturally formed substance known to man
  - objects on Earth
  - of all gemstones
* are the hardest substance known because they have a VERY tight crystal structure
* are the most common gemstone
  - famous of gems
  - important export earner
  - oldest gemstones in creation
  - ones that glow, being hollow of any obstructions to the divine light
* are the only controlled commodity in the world
  - gems used to cut other gems and other diamonds
  - rarest, hardest, most valuable gems in the world
  - rich cousins of graphite, both crystalline forms of pure carbon
  - second most important mineral derived currently from Angola
  - treasures of the earth
* are the ultimate gift of love
  - symbol of romance
  - world's most popular gemstones
  - traditionally the most popular stone for engagement rings
  - unique in their purpose and powerful in function
  - unique, but they are also a graded commodity
* are used for anniversary gifts
  - attraction
  - cuttings
  - drills
  - giving
  - shows
  - wedding rings
  - useful for several geological purposes
  - usually colorless
* are valuable because they are rare and hard to make
  - scarce
  - valued according to their cut, color, carat and clarity
* are very effective electrical insulators , but also very good conductors of heat
  - transportable and very liquid
  - white hot
* are, in fact, pure carbon, with nothing else present.
* attract and hold onto grease, lotion, etc.
* believes that enriched environments unmistakably influence the brain's growth and learning.
* blades for grinding, cutting and crack chasers.
* bring prosperity in a lot of producing countries.
* can also be gray, yellow, brown, green, orange, lavender, and even black
  - form under other naturally occurring high-pressure conditions
  - travel to marine deposits
* can be cold, whereas pearls, being organic, are warm
  - from ten to hundreds times harder than corundum
  - of any color
  - fluoresce in a number of colors, but generally all but blue are to be avoided
  - get abrasions or even chipped through normal wear and tear
  - range from colorless, which are extremely rare, to light yellow in color
  - scratch other diamonds
* can scratch other jewelry and each other, so store separately
  - as well as each other
* change depending on the size of buildings.
* clearly satisfy less important needs than water, which is essential to life.
* come from Zaire, South Africa and Botswana.
* come in a range of colors
  - variety of colors, from yellow to brown, red to blue and so on
  - wide range of colours
  - different colours
  - every color of the rainbow, plus clear, grey, brown, and black
  - fancy colours
  - many different forms and in many colors
  - various colors such as red, blue, green, black and pink
  - to the surface through volcanic eruptions
* consist of carbon atoms each being bound to four others as indicated by the blue lines.
* derive their unique value from consumers' association of the gem with love and commitment.
* differ also from one area to another in quality.
* dominate when it comes to engagement rings.
* form at great depth, well below the crust
  - deep in the earth under extreme pressure and heat
  - from carbon that is placed under extreme pressure, and high temperatures, over eons
* give faith, purity, life, joy, innocence and repentance.
* grow in what are called cleavage planes.
* have a grain similar to the grain in wood.
* have a high dispersion
  - refractive index and dispersion
  - very high luster
* have an affinity for grease and literally collect oils in dishwater
  - isometric crystal structure
  - appearances
  - aura Diamonds have aura
  - hardness
* have internal features, called inclusions, and surface irregularities, called blemishes
  - the capability of producing more brilliance than any other gemstone
  - value mainly in exchange
* occur in old volcanic vents, pipes or in placer deposits
  - various forms, including the diamond proper, bort, ballas, and carbonado
  - most often as euhedral or rounded octahedra and twinned octahedra known as macles
  - naturally in a wide range of colors, some more attractive than others
* range from colorless to light yellow
  - very rare pinks, blues, and greens
* range in color from colorless to yellow
  - price depending on quality
* represent actions that process information flows-in and gives out processing result
  - relationships between entities
* retain value.
* rise to the Earth's surface in pipes of molten rock, or magma, from great depths.
* shine the brighter for being strewn among stones.
* simple game of bidding for cards.
* slices rapidly through ice because it transmits heat from the fingers holding it.
* slows light to a remarkable degree, and ranks high in refractive index.
* sparkle as a result of total internal reflection.
* start out as lumps of coal, usually deep within a mountain.
* symbolize knowledge
  - virtue, wealth, durability, and status
* take many years to form.
* vary from a fraction of one carat up to a very rare couple of thousand.
+ Carbon, Types of carbon
  * Graphite, with clay, is in pencils. It is very soft. The carbon atoms in it make rings, which are on top of each other and slide very easily. Diamonds are the hardest natural mineral. They are mostly of interest to science. Carbon nanotubes are very hard, so they might be used in armor. Nanotubes might be useful in nanotechnology. There are 10 million known carbon compounds
  - Where Carbon Is, Carbon on Earth
  * Diamonds are rare and are found largely in Africa. Carbon is also in some meteorites.
  * Big diamonds are very rare, and are worth a lot of money. This is because a diamond is very useful - it is very hard and it spreads light very well. There are natural and synthetic diamonds. The earth makes natural diamonds. People make synthetic diamonds. Diamonds are the hardest natural substance known to man
+ Minerals, Physical properties, Crystal structure: Natural resources
  * Each mineral has its own type of crystal structure. In some cases, two minerals have the same chemical composition but different crystal structures. But the arrangements of the carbon atoms in these two minerals are not the same, so they have different crystal structures and very different properties. Diamonds are extremely hard and have a brilliant sparkle. Graphite is soft, gray, and dull.