What are the 8 most abundant minerals on Earth?
#74736. Asked by Dylanis. (Jan 19 07 3:12 PM)
Even though there are 92 elements that naturally occur, only eight of them are abundant in the rocks that make up the Earth’s outer layer, the crust. Together, these 8 elements account for 98.5% of the crust. |
The 8 most abundant elements in Earth’s crust (by mass):
46.6% Oxygen (O)
27.7% Silicon (Si)
8.1% Aluminum (Al)
5.0% Iron (Fe)
3.6% Calcium (Ca)
2.8% Sodium (Na)
2.6% Potassium (K)
2.1% Magnesium (Mg)
Oxygen = Element not Mineral.|
"To be classified as a "true" mineral, a substance must be a solid and have a crystal structure. It must also be an inorganic, naturally-occurring, homogeneous substance with a defined chemical composition."
"From a computation based on 1672 analyses of all kinds of rocks Clarke arrived at the following as the average percentage composition:
(total 99.22%). All the other constituents occur only in very small quantities, usually much less than 1%
H20 not a mineral.
The three most abundant elements in the crust, in order of abundance, are
1. O - oxygen (not a mineral)
2. Si - silicon
3. Al - aluminum
The other five most abundant element in the crust are
* Fe - iron
* Mg - magnesium
* Ca - calcium
* K - potassium
* Na - sodium
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