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Diamonds, Pearls, Emeralds

written by: shimonbentzvi
 
Remember the old song: "None of these jewels show me a thing I want only only only I want your love."? Well this is not a quiz on love, but on precious gems.

Question 1:


Which statement about diamonds' properties is true?
A pure diamond is up to 90 % carbon and up to 5% beryllium.
The carats measure the amount of sparkle.
The so-called four C's for a diamond’s properties are: cut, clarity, carat-weight, and chemistry.
The best color for a diamond is "colorless."

Question 2:


Diamonds form deep under Earth’s surface for many millions of years. How do diamonds get to the surface?
Digging by hand and /or machine are all that is needed to get the diamonds from where they are created.
Rivers and ocean currents have brought the diamonds toward the surface.
Panning for diamonds is the preferred method for getting diamonds.
Volcanic eruptions carried them up towards the surface.

Question 3:


Which statement about diamonds is untrue?
"Diamond" comes from the ancient Greek word "adamas " meaning "sparkle."
The Hope diamond is owned by the United States.
Of all gems, diamonds are the hardest.
The Cullinan diamond was found in South Africa.

Question 4:


Which statement about diamonds is untrue?
The unit "one carat" is the same for diamonds, other gems, and gold.
The Uncle Sam Diamond was found in Arkansas.
The Uncle Sam Diamond weighs 40.23 carats..
The largest diamond in the English crown came from India.

Question 5:


Five gems are classified as "precious gems". Which of the following does not belong to the precious gems group?
Pearl
Amethyst
Sapphire
Ruby

Question 6:


Which of these is composed of beryllium, aluminium, and silicate?
Pearl
Emerald
Sapphire
Ruby

Question 7:


Which of these gems is made of aluminium oxide and chromium and is largely found in Greenland?
Sapphire
Ruby
Amethyst
Emerald

Question 8:


Pearls are formed inside the shells of certain sea animals such as oysters. How would a biologist classify these animals?
Bivalve erythrocytes.
Bivalve mollusks
Bivalve crustaceans
Bivalve nematodes

Question 9:


Because of the oppression of people in some war-torn countries, diamonds are now given an identifying numbers.
True
False

Question 10:


The Mohs scale measures the hardness of minerals, gems, and metals. Which statement about the scale is true?
Topaz is the hardest gem on the scale at 9.8.
Iron is the hardest metal at 9.5 on the scale.
Gold is the softest metal at 1 on the scale.
Talc is the softest mineral on the scale.

 


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