1. Turquoise Kassidy Brumana & Brandon Caraballo

2. How its made Turquoise is formed over a time of years by a chemical reaction that occurs when water meets rocks which contain with the specific minerals copper and aluminum. The percentage of the minerals in the rock dictate the shade of the turquoise. CuAl6(PO4)4(OH)8·4H2O

3. History of Turquoise The word Turquoise is from the Greek word "Turkois" meaning "Turkish" because it was first brought from Turkey. In ancient times, it was known as Turkis, or Turkeystone In Ancient Mayan culture no one was allowed to wear or own turquoise because it was reserved as an offering to the gods

4. Different kinds Blue Gem Turquoise Boulder Turquoise It is mined in a distinctive way and cut in a way that still shows the vein of turquoise in its natural host stone, or boulder. Loved for both its uniquely beautiful appearance, but especially for its rarity. for the golden brown to black distinctive spider web matrix and bright blues White Buffalo a semi-precious gemstone that is white with black and sometimes brown. It is sometimes called “white turquoise”

5. Different kinds #2 Dry Creek turquoise Dry creek turquoise is “beyond rare”, its rarity is increased due to the mine being closed the Shoshone Indians named it "Sacred Buffalo Turquoise" Kingman Turquoise Mined from Arizona, at one of the largest turquoise mines in North America. Most of the stones exhibit a very intense blue color and spider web design Green Turquoise Ferroan turquoise is a technical term for green turquoise. Unlike regular turquoise Green turquoise occurs when there is iron existing in the mix. And more

6. imitations Egyptians were the first ones to produce the first fake copy of turquoise. The most common imitation of turquoise encountered today is dyed howlite and magnesite Best way to spot fakes are to put the gem under a microscope and look to see if there are any sparkles.

7. Value There are many factors when figuring out the turquoise value. It all depends on if the gem is fake or if it is real. Also it depends on the quantity, meaning of how much of it you have

8. Random facts In the Middle Ages the Turquoise was believed to appease hatred, relieve and prevent headaches it was believed to change color when its owner was in bad health was among the first gems to be mined

9. Locations and mines American turquoise is considered the finest of all. Mines are mostly located in Arizona, California, New Mexico, Nevada, and Colorado. Nevada is the most common place to mine Turquoise.

10. bibliography http://www.native-american- market.com/index.htmlhttp://www.native-american- market.com/index.html http://en.wikipedia.org/wiki/Turquoise http://www.indianvillage.com/turquoisemin es.htmhttp://www.indianvillage.com/turquoisemin es.htm