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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?
The best color for a diamond is "colorless."
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.

Question 2:


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

Question 3:


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

Question 4:


Which statement about diamonds is untrue?
The Uncle Sam Diamond weighs 40.23 carats..
The Uncle Sam Diamond was found in Arkansas.
The unit "one carat" is the same for diamonds, other gems, and gold.
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?
Ruby
Pearl
Amethyst
Sapphire

Question 6:


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

Question 7:


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

Question 8:


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

Question 9:


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

Question 10:


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

 


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