precious gem stones


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precious gem stones

  1. 1. My kids dig is<br />
  2. 2. Precious gem stones<br />By Bronwyn Lowe <br />6N<br />
  3. 3. What are they?<br />
  4. 4. What are they?<br />Gem stones are minerals cut and polished and come in many shapes and sizes. Below are some of the types.<br />
  5. 5. Who found out about them<br />The first gem stone was found by a soldier in war in Africa.<br />Though the soldier had other things on his mind when he saw the bright red glow he could not resist.<br />The gem stone turned out as a ruby which is one of todays most precious gems.<br />Though people do not know anything about the man they say he was German or English.<br />
  6. 6. What are the most precious stones?<br />Emeralds<br />Ruby<br />Diamond<br />Black Pearl<br />Topaz<br />Sapphire<br />And many more.<br />
  7. 7. Where does the word gem originate from<br />The word gem stone originates from old English gimm and the old Latin Gemma.<br />Gemma in Latin meant bud which today is a symbol of gem stones or jewellery.<br />Over the years they have come to call precious stones gems. <br />
  8. 8. Gems are usually found near the bottom of volcanoes or in under ground caves (mining).here are the reasons.<br />The volcanoes cooling magma and molten rock as the minerals come together.<br />In under ground caves becauseall under ground caves is rich mineral water there comes the gem stone from the mineral. <br />how are gems formed<br />
  9. 9. Random facts<br />Amethys,agate,crystals,<br />Lapis , lazuli, pearls,rubies and emeralds were the first to be found.<br /> gem stones when not cut and polished look like normal rocks.<br />There are two classes for gems precious gem stones and semi precious gem stones.<br />Amethyst was considered a precious gem stone until large amounts were found in africa and because there was so much it lost its value.<br />Diamonds are the hardest natural substanse found on earth.<br />
  10. 10. More facts<br />Gemstones are also known as birthstones. If you look at certain charts you will see depending on where you are born you will have a certain gemstone representing when you were born.<br />If a gemstone is scratched it looses its value immediately. <br />There is a new star sign that has just been added in and the new gem stone sign is still being decided!!! <br />
  11. 11. How is a gem stone rated.<br />gems are evaluated by the 4 c’s : colour, clarity, cut and carat weight.<br />We break the price ranges down to five categories.<br />The five categories are traditional gems, new classics, connoisseur gems, collector gems and affordable gems.<br />Traditional gems can cost from £250 to £10,000.<br />New classics can cost from £50 to £3,000<br />Connoisseur gems can cost from £250 to £10,000<br />Collector gems can not be ranged because they are very different<br />Affordable gems can cost from £50 to £100.<br />
  12. 12. The Koh I Noor Diamond<br />
  13. 13. quiz<br />What are gemstones ?<br />Gems are minerals cut and polished.<br />What are the four c’s<br />Colour clarity cut and carat weight. <br />Name one of the price categories<br />Affordable, collectors, new classics, traditional and connoisseur <br />
  14. 14. I hope you enjoyed it<br />The end<br />By Bronwyn Lowe <br />