'._('einklappen').'
 

Brammallite

Collectors Summary

Color weiß
Streak color weiß
Cleavages vollkommen
Crystal System monoklin, C2/c

Chemism

Chem­ical formula

(Na,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,H2O]

Chem­ical com­po­si­tion

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

Unit weight: 381.37539194 u; Number of atoms in the formula: 21.5

Info

Empirical formula:

(Na0.75(H3O)0.25)(Al0.6Mg0.3Fe0.1)2(Si0.75Al0.25)4O10[((OH)2)0.75(H2O)0.25]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.73

2.75

12.79

1.0079470

2.7718543

Oxygen

O

50.34

12

55.81

15.9994300

191.9931600

Sodium

Na

4.52

0.75

3.49

22.9897702

17.2423277

Magnesium

Mg

3.82

0.6

2.79

24.3050600

14.5830360

Aluminium

Al

15.56

2.2

10.23

26.9815382

59.3593840

Silicon

Si

22.09

3

13.95

28.0855300

84.2565900

Iron

Fe

2.93

0.2

0.93

55.8452000

11.1690400

Strunz 9th edi­tion incl. updates

9.EC.25

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
25:Illit-Gruppe

Lapis Clas­sifica­tion

VIII/H.13-020

VIII: SILIKATE
H: Schichtsilikate
13: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Alkali-defizitäre Glimmer (Anhang)

IMA sta­tus

Mineralgruppe

Min­eral sta­tus

Reihe/Gruppe/Serie/Folge

IMA Classification

IMA Clas­sifica­tion

Mica group  ⇒ Micas with lack of interlayers (IDM)

Optical Properties

Color

weiß

Streak color

weiß

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters α

90°

Cell param­e­ters γ

90°

Z

4

X-Ray Pow­der Diffrac­tion

9.77(100),
4.78(80),
4.406(90),
3.169(100),
2.542(90),
2.410(60),
2.112(60),
1.485(100)

XRD chart Brammallite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Cleav­ages

vollkommen

(Co-)Type locality

(Co-)Type locality

UK/Wales/Carmarthenshire/Llandybie

Preface

Author (Name, Year)

Bannister, 1943

References

Canadian Mineralogist 36 (1998), 905

IMA group assignments

 
 
 
 


 
 
 
(Na,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,H2O]
monoklin
C2/c

 
 
 
(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
monoklin
C2/m

 
 
 
(K,H3O)Al2(Si3Al)O10(H2O,OH)2
monoklin
C2/c

 
 
 
(Na,K,☐)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4
triklin
C1

Refresh list

Actuality: 16. Apr 2021 - 09:00:10

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

'Illite' (Var.v. Muscovite)

(K,H3O)Al2(Si3Al)O10(H2O,OH)2

monoklin : 2/m : C2/c

9.EC.25

'Brammallite'

(Na,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,H2O]

monoklin : 2/m : C2/c

9.EC.25

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Wonesite

(Na,K,☐)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4

triklin : 1 : C1

VIII/H.13-010

'Brammallite'

(Na,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,H2O]

monoklin : 2/m : C2/c

VIII/H.13-020

'Illite' (Var.v. Muscovite)

(K,H3O)Al2(Si3Al)O10(H2O,OH)2

monoklin : 2/m : C2/c

VIII/H.13-030

'Glauconite'

(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

monoklin : 2/m : C2/m

VIII/H.13-040

Other languages

German

Brammallit

Spanish

Brammallita

French

Brammallite

English

Brammallite

Japanese

ブラマールライト

Alternative Name

English

Hydroparagonite

Sodium-Illite

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Brammallit
Google-Bilder-Suche - search for: Brammallit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Brammallit

English pages

Mindat - search for: Brammallite
Webmineral - search for:Brammallite
Handbook-of-Mineralogy - search for: Brammallite
RRUFF - Raman, XRD and other mineral data - search for: Brammallite
RRUFF - References and PDF downloads - search for: Brammallite
American-Mineralogist-Crystal-Structure-Database - search for: Brammallite
Athena - search for: Brammallite

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Brammallit
Crystal-Treasure.com - search for: Brammallit
Bosse - search for: Brammallit

Locations with GPS information