Q830
Chlorite belongs to the
A.
2 : 2 type
AnswerB.
2 : 1 type
C.
1 : 1 type
D.
amorphous type
Answer: Option A
Solution
Answer: Option A
Solution:
Chlorites are a group of phyllosilicate minerals common in low-grade metamorphic rocks and altered igneous rocks.Chlorite belongs to the 2 : 2 type. The typical general formula for chlorite is (Mg, Fe)3(Si, Al)4O10(OH)2 · (Mg, Fe)3(OH)6. This formula emphasizes the structure of the group, which is described as TOT-O and consists of alternating TOT layers and O layers.