Multiple choice

Which of the following are examples of framework silicates?

  1. Feldspars
  2. Zeolites
  3. Mica
  4. Thortveitite Select the correct answer.

  1. 1 and 2 only

  2. 1 and 3 only

  3. 1 and 4 only

  4. 2 and 3 only

  5. 3 and 4 only
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Feldspars are a group of rock-forming tectosilicate (framework silicates) minerals that make up as much as 60% of the Earth's crust. Zeolites are framework silicates, with a completely linked framework of tetrahedra, each consisting of 4 O2- surrounding a cation (usually Si4+ or Al3+).

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