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Arithmetic crystal class

From Online Dictionary of Crystallography

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Arithmetic crystal classes

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Classes arithmétiques (Fr).


Definition

Three-dimensional arithmetic crystal classes.
Crystal systems Crystal class
Geometric Arithmetic
Number Symbol
Triclinic [math] 1 [/math] 1 [math] 1P [/math]
[math] {\bar 1} [/math] 2 [math] {\bar 1}P [/math]
Monoclinic [math] 2 [/math] 3 [math] 2P [/math]
[math] m [/math] 4 [math] 2C [/math]
5 [math] mP [/math]
[math] 2/m [/math] 6 [math] mC [/math]
7 [math] 2/m P [/math]
8 [math] 2/m C [/math]
Orthorhombic [math] 222 [/math] 9 [math] 222 P [/math]
10 [math] 222 C [/math]
11 [math] 222 F [/math]
12 [math] 222 I [/math]
[math] mm [/math] 13 [math] mm2 P [/math]
14 [math] mm2 C [/math]
15 [math] 2mmC [/math]
[math] (Amm2) [/math]
16 [math] mm2F [/math]
17 [math] mm2I [/math]
[math] mmm [/math] 18 [math] mmmP [/math]
19 [math] mmmC [/math]
20 [math] mmmF [/math]
21 [math] mmmI [/math]

See also

Section 8.2.3 of International Tables of Crystallography, Volume A
Sections 1.3.4 and 1.5.3 of International Tables of Crystallography, Volume B
Section 1.4 of International Tables of Crystallography, Volume C