Mining Geology - Study Mode

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[#166] The composition of mineral is Zns called

(A) Sphalerite, Blende

(B) Tetanium

(C) Galena

(D) Dolanite

Correct Answer

(A) Sphalerite, Blende

[#167] Specific gravity of bauxite

(A) 1.5

(B) 2.5

(C) 3.5

(D) 4.5

Correct Answer

(C) 3.5

[#168] Muscovite crystalizes in . . . . . . . . system.

(A) Monoclinic

(B) Hexagonal

(C) Cubic

(D) None

Correct Answer

(A) Monoclinic

[#169] Half life of U 238 is

(A) 11900 my

(B) 4500 my

(C) 4700 my

(D) 21900 my

Correct Answer

(B) 4500 my

[#170] In acid rocks sillica percentage more than

(A) 45

(B) 55

(C) 60

(D) 65

Correct Answer

(D) 65