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Ferri-tschermakite (Ferri-Tschermakit)

Additional Functions

Chemism

Chemical formula

☐Ca2(Mg3Fe3+2)(Si6Al2)O22(OH)2

Chemical composition

Aluminium, Calcium, Eisen, Magnesium, Silicium, Sauerstoff, Wasserstoff, Vakanz

Unit weight: 873.24085041 u; Number of atoms in the formula: 42

Info

Empirical formula:

VcCa2(Mg3Fe2)(Si6Al2)O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Vacancy

Vc

0.00

1

2.38

0.0000000

0.0000000

Hydrogen

H

0.23

2

4.76

1.0079470

2.0158940

Oxygen

O

43.97

24

57.14

15.9994300

383.9863200

Magnesium

Mg

8.35

3

7.14

24.3050600

72.9151800

Aluminium

Al

6.18

2

4.76

26.9815382

53.9630764

Silicon

Si

19.30

6

14.29

28.0855300

168.5131800

Calcium

Ca

9.18

2

4.76

40.0784000

80.1568000

Iron

Fe

12.79

2

4.76

55.8452000

111.6904000

IMA Classification

IMA Classification

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Calcium amphiboles  ⇒ Tschermakite (Ts) amphiboles

References

Frank C. Hawthorne, Roberta Oberti, George E. Harlow, Walter V. Maresch, Robert F. Martin, John C. Schumacer, Mark D. Welch (2012): Nomenclature of the amphibole supergroup, American Mineralogist, Volume 97, pages 2031–2048

IMA group assignments

Other languages

German

Ferri-Tschermakit

English

Ferri-tschermakite

IDs

GUSID (Global unique identifier short form) 1Ww31bT9NUCxmT_bZBVTpg
GUID (Global unique identifier) D5376CD5-FDB4-4035-B199-3FDB641553A6
Database ID 7461