Chemistry, asked by mantasha17, 10 months ago

is phyllosilicate has high absorbing power??​

Answers

Answered by Anonymous
6

Answer:

The mica group of sheet silicate (phyllosilicate) minerals includes several closely related materials having nearly perfect basal cleavage. All are monoclinic, with a tendency towards pseudohexagonal crystals, and are similar in chemical composition. The nearly perfect cleavage, which is the most prominent characteristic of mica, is explained by the hexagonal sheet-like arrangement of its atoms.

Mica

Mica (6911818878).jpg

General

Category

Phyllosilicates

Formula

(repeating unit)

AB2–3(X, Si)4O10(O, F, OH)2

Identification

Color

purple, rosy, silver, gray (lepidolite); dark green, brown, black (biotite); yellowish-brown, green-white (phlogopite); colorless, transparent (muscovite)

Cleavage

Almost perfect

Fracture

flaky

Mohs scale hardness

2.5–4 (lepidolite); 2.5–3 biotite; 2.5–3 phlogopite; 2–2.5 muscovite

Luster

pearly, vitreous

Streak

White, colorless

Specific gravity

2.8–3.0

Diagnostic features

cleavage

References

[1][2][3][4]

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