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Ottoliniite

Chemism

Chem­ical formula

NaLi(Mg3Fe3+Al)Si8O22(OH)2

Chem­ical com­po­si­tion

Aluminium, Eisen, Lithium, Magnesium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 796.3593424 u; Number of atoms in the formula: 41

Info

Empirical formula:

NaLi(Mg3FeAl)Si8O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.25

2

4.88

1.0079470

2.0158940
Lithium

Li

0.87

1

2.44

6.9412000

6.9412000
Oxygen

O

48.22

24

58.54

15.9994300

383.9863200
Sodium

Na

2.89

1

2.44

22.9897702

22.9897702
Magnesium

Mg

9.16

3

7.32

24.3050600

72.9151800
Aluminium

Al

3.39

1

2.44

26.9815382

26.9815382
Silicon

Si

28.21

8

19.51

28.0855300

224.6842400
Iron

Fe

7.01

1

2.44

55.8452000

55.8452000

Strunz 9th edi­tion incl. updates

9.DE.25

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
E: Ketten- und Bandsilikate mit 2-periodischen Doppelketten, Si4O11; Amphibol-Familie, Klinoamphibole
25:Amphibole: Alkali

IMA sta­tus

theoretisches Endglied

Min­eral sta­tus

Mineralstatus fragwürdig

IMA Classification

IMA Classification

 Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Sodium-(magnesium-iron-manganese) amphiboles

Crystallography

Space Group

C/2m

Cell param­e­ters α

90°

Cell param­e­ters γ

90°

References

Canadian Mineralogist 41 (2003), 1355.

American Mineralogist 89 (2004), 888.

IMA group assignments

Other languages

German

Ottoliniit

English

Ottoliniite

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