Q920
The mineral chlorite has an extra layer of
A.
Brucite
B.
Illite
AnswerC.
Gibbosite
D.
Montomorillonite
Answer: Option B
Solution
Answer: Option B
Solution:
The mineral chlorite has an extra layer of Illite. The illite is abundant throughout the illite-chlorite predominant zone. Layers of illite and chlorite are semicoherent.The chlorites are a group of phyllosilicate minerals common in low-grade metamorphic rocks and altered igneous rocks.