Rocks, Minerals and Gemstones

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Last updated: August 2, 2014

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First submitted	August 2, 2014
Times taken	666
Average score	53.3%
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Hint	Answer
What common mineral is the basis for many semi precious gemstones, including amethyst and citrine?	Quartz
Which is the only U.S. state where you could find a diamond mine?	Arkansas
What is another name for pyrite?	Fool's Gold
What green precious gemstone is primarily made of beryllium?	Emerald
Sandstone, shale, and conglomerate are examples of what type of rock?	Sedimentary
What would you call a rock with a crystalline lining around an inner cavity?	Geode
What man-made gemstone is often used as a substitute for diamonds in jewelry?	Cubic Zirconium
What does the Moh's scale measure in minerals?	Hardness
What common metal oxidizes to a green color?	Copper
Where do igneous rocks come from, primarily?	Volcanoes
What is the largest blue diamond in the world?	The Hope Diamond
And where is it ^ located?	The Smithsonian Museum of Natural History
What mineral is the base of both ruby and sapphire?	Corundum
What would you call someone who studies minerals?	Mineralogist
____ is the only mineral directly consumed by people.	Salt

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4 Comments

Level 36

Oct 7, 2014

Volcanoes is spelled wrong. I tried volcano, volcanic eruption, lava, molten rock, magma, pretty much anything i could think of. But not volcanos.

Level 91

Nov 14, 2017

same here. Also, I typed in Hope and it didn't work; I think that would be a reasonable type-in to allow.

Level 75

Mar 19, 2020

Emerald (a variety of beryl) is beryllium aluminum silicate (Be3Al2Si3O18) colored by traces of chromium and/or vanadium. Beryllium is not the primary constituent, either by mass, where it comes in last, or by number of atoms where it is second-to-last after aluminium. The primary element is oxygen.

Level 75

Oct 25, 2021

It's cubic zirconia, not cubic zirconium.

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