Q137
2 : 1 : 1 type of clay mineral contain and extra sheet of . . . . . . . . as compared to 2 : 1 type of clay minerals
A.
Gibbsite
B.
Pyroxenes
C.
Brucite
AnswerD.
Biotite
Answer: Option C
Solution
Answer: Option C
Solution:
2 : 1 : 1 type of clay mineral contains an extra sheet of Brucite as compared to the 2 : 1 type of clay minerals.Brucite is the mineral form of magnesium hydroxide and is a common alteration product of periclase in marble. It adopts a layered Cdl2- like structure with hydrogen bonds between the layers.