Cristalografie Suport Curs

8/13/2019 Cristalografie Suport Curs

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Sistem

Grup punctual

TRICLINIC MONOCLINIC TRIGONAL TETRAGONAL HEXAGONAL CUBIC

PRIMITIV

X A1=1 A

2=2 A

3=3 A

4=4 A

6=6 3A

24A

3=23

PRIMITIV DE

INVERSIUNE

X____

== 1CA1i

== 2PA 22

i

= 3A3i

=4A4i

= 6A6i

-

CENTRAT

m

X -

m

2C

P

A

2

2

= -

m

4C

P

A

4

4

= m

6C

P

A

6

6

= 3

m

2C

A4

P3

A3 3

2

2

=

PLANAR

Xm-

ROMBIC

m3P3

A

2

3

=

mm4P2P2

A

2'2

4

=

mm6P3P3

A

2'2

6

=

-

mm2PP

A

2'2

2

=

PLANAR DE

INVERSIUNE

X____

m

- -m3C

P3

A3A

2

23i

=

m24P2

A2A

2

24i

=

m26P3

A3A

2

26i

=

m34P6

A4A3

2

34i

=

AXIAL

X2- A

2A

2A

2=222 A

33A

2=32 A

42A

22A

2=422 A

63A

23A

2=622 3A

44A

36A

2=432

PLAN-AXIAL

mm

X

- mm

2CP

A

P

A

P

A2

2''

2

2'

2

2

=

- mmm

4CP2

A2

P2

A2

P

A2'

2'

2

2

4

4

= mmm

6CP3

A3

P3

A3

P

A2'

2'

2

2

6

6

= m3m

4CP6

A6A4

P3

A32

23

4

4

=


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Cristalografie Suport Curs

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