Q146
Primary minerals are having diameter
A.
< 2 μm
B.
> 2 μm
C.
> 0.002 mm
D.
Both B and C
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
The primary mineral is the mineral that is formed during the original crystallization of the host igneous primary rock and includes the essential mineral used to classify the rock along with any accessory minerals.Primary minerals can be used to analyze geochemical dispersion halos and indicator minerals. The diameter of primary minerals are having a diameter greater than 2 μm (0.002 mm), which includes silt, sand and gravel.