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5 votes
The eight most common elements in Earth's crust are: O, Si, Al, Fe, Ca, Na, K, and Mg. These elements account for 98% of the atoms in Earth's crust. These eight elements combine chemically with one another to make six main minerals which account for 90% of the minerals in Earth's crust. These minerals, the so-called the rock forming minerals, are: feldspar, pyroxene, amphibole, mica and the last, made up of the two most abundant elements, is

A) galena.

B) gold.

C) hematite.

D) quartz.

The eight most common elements in Earth's crust are: O, Si, Al, Fe, Ca, Na, K, and-example-1
User Will Lanni
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2 Answers

11 votes
11 votes
Answer:
D) Quartz.
Step-by-step explanation:
Silicate Minerals are by far the largest mineral group and quartz is one of the two most common silicate minerals which makes it an extremely common rock forming mineral.
User NEAnnam
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19 votes
19 votes

Answer:

I am sorry I am not sure but I think it's either B or D because the other one's don't make sense to me. I read a lot about this stuff but I have never seen this type of question so sorry I am not sure. I hope I could help tho! :D

Step-by-step explanation:

User Tropin Alexey
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