GEOSCI 331 MIDTERM EXAM QUESTIONS WITH CORRECT ANSWERS.

GEOSCI 331 MIDTERM EXAM QUESTIONS WITH
CORRECT ANSWERS




Brilliance is described as ___ -- Answer ✔✔ the amount of light reflected from within
the stone



A four carat diamond (A) will be worth more than another of the same weight (B) if: --
Answer ✔✔ The second diamond (B) has cracks or appears cloudy



Metamorphic rocks are ___ -- Answer ✔✔ sedimentary or igneous rocks changed by
elevated temperature and pressure



The bottom-most facet of a gemstone is called _____ -- Answer ✔✔ the culet



The element Technetium has an atomic number of 43. What does this number mean? --
Answer ✔✔ The total number of protons in the element.



The more inclusions a gem has, the ______ -- Answer ✔✔ less valuable it will be

more fragile it may be

more cloudy it will appear

(all of the above)

, Diamond has a hardness of ___. -- Answer ✔✔ 10



Fluorite -- Answer ✔✔ 4



Calcite -- Answer ✔✔ 3



Topaz -- Answer ✔✔ 8



Quartz -- Answer ✔✔ 7



Feldspar -- Answer ✔✔ 6



Talc -- Answer ✔✔ 1



Corundum -- Answer ✔✔ 9



Gypsum -- Answer ✔✔ 2



Apatite -- Answer ✔✔ 5



The emerald cut is so named because: -- Answer ✔✔ the namesake stone is commonly
fashioned that way