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Annite

Pictures (11 Images total)

Annit
Views (Image: 1186664148): 5196
Annit

Fundort: Stbr. Stolz, Hillesheim, Eifel, Rheinland-Pfalz, Deutschland; Bildbreite: 8 mm

Collection: Willi Schüller, Adenau
Copyright: Stephan Wolfsried
Contribution: Hg 2007-08-09
Locality: Steinbruch Stolz (Graulai; Graulay) / Hillesheim / Vulkaneifel, Landkreis / Rheinland-Pfalz / Deutschland
Annit
Views (Image: 1166724107): 5397
Annit

Bildbreite: 8 mm; Fundort Emmelberg, Üdersdorf, , Eifel, Rheinland-Pfalz, Deutschland

Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-21
Locality: Emmelberg / Üdersdorf / Daun / Vulkaneifel, Landkreis / Rheinland-Pfalz / Deutschland
Annit
Views (Image: 1275924317): 3400
Annit

Größe: 6,8 x 5,4 x 4,6 cm, Fundort: Rockport, Essex Co., Massachusetts, USA

Copyright: Rob Lavinsky
Contribution: thdun5 2010-06-07
Locality: Rockport / Essex Co. / Massachusetts / USA
Annit
Views (Image: 1338997912): 2204
Annit (SNr: A025895)

Blättrige schwarze Kristalle bilden Kristallpakete, BB = 7,4 mm, Fundort: AS-Granit-Steinbruch, Tvedalen, Brunlanes, Vestfold, Norwegen.

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2012-06-06
Locality: AS Granit-Larvikit-Steinbruch / Tuften / Tvedalen / Larvik / Vestfold og Telemark, Provinz / Norwegen
Annit
Views (Image: 1329654224): 3808
Annit

Deutschland, Rheinland-Pfalz, Eifel, Emmelberg; x - 0,9 mm; Fund: 09.1990;

Collection: hkern
Copyright: hkern
Contribution: hkern 2012-02-19
Locality: Emmelberg / Üdersdorf / Daun / Vulkaneifel, Landkreis / Rheinland-Pfalz / Deutschland
Annit
Views (Image: 1459528755): 444
Annit

Annit X (Lepidomelan); Stufe ist ca. 12 x 10 cm; Annit X 5 cm H und 6 cm D; Saga Tvedalen Norwegen

Collection: Privat - Museum M+M. Sendelbach
Copyright: Michael & Maren S
Contribution: PriMus1 2016-04-01
Locality: Saga 1 / Sagåsen (Strandåsen) / Mørje / Porsgrunn / Vestfold og Telemark, Provinz / Norwegen

Collectors Summary

Color schwarz, rötlichbraun
Streak color bräunlich weiß
Lustre Diamantglanz
Hardness (Mohs) 2.5 - 3
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

KFe2+3(Si3Al)O10(OH,F)2

Chem­ical com­po­si­tion

Aluminium, Eisen, Silicium, Fluor, Kalium, Sauerstoff, Wasserstoff

Unit weight: 512.876605325 u; Number of atoms in the formula: 21.5

Info

Empirical formula:

KFe3(Si3Al)O10((OH)0.75F0.25)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.29

1.5

6.98

1.0079470

1.5119205

Oxygen

O

35.87

11.5

53.49

15.9994300

183.9934450

Fluorine

F

1.85

0.5

2.33

18.9984033

9.4992016

Aluminium

Al

5.26

1

4.65

26.9815382

26.9815382

Silicon

Si

16.43

3

13.95

28.0855300

84.2565900

Potassium

K

7.62

1

4.65

39.0983100

39.0983100

Iron

Fe

32.67

3

13.95

55.8452000

167.5356000

Anal­y­sis wt%

SiO2 : 33.96, Al2O3 : 13.10, Fe2O3 : 3.06, FeO : 32.04, MgO : 0.97, MnO : 0.65, TiO2 : 3.55, K2O : 8.47, Na2O : 0.49, CaO : 0.42, H2O : 2.50, F : 0.82 (Ref: American Mineralogist 73)

Strunz 9th edi­tion incl. updates

9.EC.20

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

Lapis Clas­sifica­tion

VIII/H.11-110

VIII: SILIKATE
H: Schichtsilikate
11: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Lithionit/Biotit-Reihe

Clas­sifica­tion by Hölzel

9.ED.140

9: SILICATES
E: Phyllosilicates
D: Biotite-Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Mica group  ⇒ True micas

Optical Properties

Color

schwarz, rötlichbraun

Streak color

bräunlich weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

Lus­tre

Diamantglanz

max. Birefrin­gence

0.066

Birefringence chart\! Annite title=Birefringence chart Annite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.625

RI value β

1.690

RI value γ / ε

1.691

Ri mean

1.669

2V angle

Biaxial (-) 10°

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

5.386

Cell param­e­ters b (Å)

9.324

Cell param­e­ters c (Å)

10.268

Cell param­e­ters a/b or c/a

0.578

Cell param­e­ters c/b

1.101

Cell param­e­ters α

90°

Cell param­e­ters β

100.63

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

506.8

X-Ray Pow­der Diffrac­tion

10.264(100),
3.380(80),
2.654(70),
2.532(10),
2.465(40),
2.199(20),
1.692(20),
1.556(40)

XRD chart Annite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2.5 - 3

Density (g/cm³)

3.17(gemessen) 3.32 (berechnet)

3.361 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

USA/Massachusetts/Essex Co./Rockport

Preface

Author (Name, Year)

Dana, 1868

Col­lector informa­tion

Entdeckungsjahr 1868

References

Canadian Mineralogist 36 (1998), 905.

Karel Breiter, Michaela Vaňková, Michaela Vašinová Galiová, Zuzana Korbelová, Viktor Kanický: Lithium and trace-element concentrations in trioctahedral micas from granites of different geochemical types measured via laser ablation ICP-MS. Mineralogical Magazine, Jhrg. 81, Nr. 1 (2017) S. 15-33.

IMA group assignments

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

Annite

KFe2+3(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/m

9.EC.20

'Biotite'

K(Mg,Fe2+)3(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/m

9.EC.20

Garmite

CsLiMg2(Si4O10)F2

monoklin : m, 2/m : C2, Cm

9.EC.20

'Ephesite'

NaLiAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

9.EC.20

Meifuite

KFe6(Si7Al)O19(OH)4Cl2

triklin : 1 : P1

9.EC.20

Orlovite

KLi2TiSi4O11F

monoklin : 2 : C2

9.EC.20

Wonesite

(Na,K,☐)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4

triklin : 1 : C1

9.EC.20

Eastonite

KMg2Al[(OH)2|Al2Si2O10]

monoklin : 2 : C2

9.EC.20

Suhailite

(NH4)(Fe2+)3(Si3Al)O10(OH)2

monoklin : C2/m ?

9.EC.20

Norrishite

KLiMn3+2Si4O12

monoklin : 2/m : C2/m

9.EC.20

Phlogopite

KMg3(Si3Al)O10(F,OH)2

monoklin : 2/m : C2/m

9.EC.20

Aspidolite-1M

NaMg3(AlSi3)O10(OH)2

monoklin : 2/m : C2/m

9.EC.20

Balestraite

KLi2V5+Si4O12

monoklin : 2 : C2

9.EC.20

Fluorannite

KFe32+[(F,OH)2|AlSi3O10]

monoklin : 2/m : C2/m

9.EC.20

Gorbunovite

CsLi2(Ti,Fe)Si4O10(F,OH,O)2

monoklin : 2/m, 2, m : C2/m, C2, Cm

9.EC.20

Sokolovaite

CsLi2AlSi4O10F2

9.EC.20

'Zinnwaldite'

KLiFe2+Al(AlSi3)O10(F,OH)2

monoklin : 2 : C2

9.EC.20

Hendricksite

K(Zn,Mn)3Si3AlO10(OH)2

monoklin : 2/m : C2/m

9.EC.20

Yangzhumingite

KMg2.5Si4O10F2

monoklin : 2/m : C2/m

9.EC.20

Fluorotetraferriphlogopite

KMg3Fe3+Si3O10F2

monoklin : 2/m : C2/m

9.EC.20

Preiswerkite

NaMg2Al3Si2O10(OH)2

monoklin : 2/m : C2/m

9.EC.20

'Shirozulite'

K(Mn2+,Mg)3[(OH)2|AlSi3O10]

9.EC.20

Kreiterite

CsLi2Fe3+Si4O10F2

monoklin : 2/m, m, 2 : C2/m, C2, Cm

9.EC.20

Masutomilite

K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2

monoklin : 2 : C2

9.EC.20

Oxyphlogopite

K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2

monoklin : 2/m : C2/m

9.EC.20

Shirokshinite

KNaMg2[F2|Si4O10]

monoklin : 2/m : C2/m

9.EC.20

Trilithionite

KLi1.5Al1.5[F2|AlSi3O10]

monoklin : 2/m : C2/m

9.EC.20

Polylithionite

KLi2AlSi4O10(F,OH)2

monoklin : 2/m : C2/m

9.EC.20

Siderophyllite

KFe22+Al(Al2Si2)O10(F,OH)2

monoklin : 2 : C2/m

9.EC.20

'Spodiophyllite'

(Na,K)4(Mg,Fe2+)3(Fe3+,Al)2(Si8O24)

9.EC.20

'Fluorphlogopite'

K(Mg,Fe2+)3(Si3Al)O10(F,OH)2

9.EC.20

Fluorophlogopite

KMg3(AlSi3)O10F2

monoklin : 2/m : C2/m

9.EC.20

'Tetraferriannite'

KFe2+3(Si3Fe3+)O10(OH)2

monoklin : 2/m : C2/m

9.EC.20

Tetraferriphlogopite

KMg3[(F,OH)2|(Al,Fe3+)Si3O10]

monoklin : 2/m : C2/m

9.EC.20

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

Polylithionite

KLi2AlSi4O10(F,OH)2

monoklin : 2/m : C2/m

VIII/H.11-010

Orlovite

KLi2TiSi4O11F

monoklin : 2 : C2

VIII/H.11-012

Sokolovaite

CsLi2AlSi4O10F2

VIII/H.11-015

Yangzhumingite

KMg2.5Si4O10F2

monoklin : 2/m : C2/m

VIII/H.11-018

Tainiolite

KLiMg2Si4O10F2

monoklin : 2/m : C/2m

VIII/H.11-020

Norrishite

KLiMn3+2Si4O12

monoklin : 2/m : C2/m

VIII/H.11-030

Shirokshinite

KNaMg2[F2|Si4O10]

monoklin : 2/m : C2/m

VIII/H.11-035

Montdorite

KMn0.52+Fe1.52+Mg0.5[F2|Si4O10]

monoklin : 2/m : C2/m

VIII/H.11-040

Trilithionite

KLi1.5Al1.5[F2|AlSi3O10]

monoklin : 2/m : C2/m

VIII/H.11-050

Voloshinite

Rb(LiAl1.50.5)(Al0.5Si3.5)O10F2

monoklin : C2/c

VIII/H.11-055

Masutomilite

K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2

monoklin : 2 : C2

VIII/H.11-060

Aspidolite-1M

NaMg3(AlSi3)O10(OH)2

monoklin : 2/m : C2/m

VIII/H.11-070

Oxyphlogopite

K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2

monoklin : 2/m : C2/m

VIII/H.11-073

'Fluorphlogopite'

K(Mg,Fe2+)3(Si3Al)O10(F,OH)2

VIII/H.11-075

Phlogopite

KMg3(Si3Al)O10(F,OH)2

monoklin : 2/m : C2/m

VIII/H.11-080

Fluorotetraferriphlogopite

KMg3Fe3+Si3O10F2

monoklin : 2/m : C2/m

VIII/H.11-088

Tetraferriphlogopite

KMg3[(F,OH)2|(Al,Fe3+)Si3O10]

monoklin : 2/m : C2/m

VIII/H.11-090

Hendricksite

K(Zn,Mn)3Si3AlO10(OH)2

monoklin : 2/m : C2/m

VIII/H.11-100

'Shirozulite'

K(Mn2+,Mg)3[(OH)2|AlSi3O10]

VIII/H.11-102

Fluorannite

KFe32+[(F,OH)2|AlSi3O10]

monoklin : 2/m : C2/m

VIII/H.11-105

Annite

KFe2+3(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/m

VIII/H.11-110

'Tetraferriannite'

KFe2+3(Si3Fe3+)O10(OH)2

monoklin : 2/m : C2/m

VIII/H.11-120

Suhailite

(NH4)(Fe2+)3(Si3Al)O10(OH)2

monoklin : C2/m ?

VIII/H.11-125

'Ephesite'

NaLiAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

VIII/H.11-130

Preiswerkite

NaMg2Al3Si2O10(OH)2

monoklin : 2/m : C2/m

VIII/H.11-140

Eastonite

KMg2Al[(OH)2|Al2Si2O10]

monoklin : 2 : C2

VIII/H.11-150

Siderophyllite

KFe22+Al(Al2Si2)O10(F,OH)2

monoklin : 2 : C2/m

VIII/H.11-160

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

Phlogopite

KMg3(Si3Al)O10(F,OH)2

monoklin : 2/m : C2/m

9.ED.100

Fluorophlogopite

KMg3(AlSi3)O10F2

monoklin : 2/m : C2/m

9.ED.102

Tetraferriphlogopite

KMg3[(F,OH)2|(Al,Fe3+)Si3O10]

monoklin : 2/m : C2/m

9.ED.106

Fluorotetraferriphlogopite

KMg3Fe3+Si3O10F2

monoklin : 2/m : C2/m

9.ED.107

Aspidolite-1M

NaMg3(AlSi3)O10(OH)2

monoklin : 2/m : C2/m

9.ED.110

'Aspidolite-1A' (Pol.v. Aspidolite-1M)

NaMg3(AlSi3)O10(OH)2

9.ED.111

Eastonite

KMg2Al[(OH)2|Al2Si2O10]

monoklin : 2 : C2

9.ED.120

Oxyphlogopite

K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2

monoklin : 2/m : C2/m

9.ED.130

Annite

KFe2+3(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/m

9.ED.140

Suhailite

(NH4)(Fe2+)3(Si3Al)O10(OH)2

monoklin : C2/m ?

9.ED.142

Fluorannite

KFe32+[(F,OH)2|AlSi3O10]

monoklin : 2/m : C2/m

9.ED.145

'Tetraferriannite'

KFe2+3(Si3Fe3+)O10(OH)2

monoklin : 2/m : C2/m

9.ED.150

Hendricksite

K(Zn,Mn)3Si3AlO10(OH)2

monoklin : 2/m : C2/m

9.ED.170

'Shirozulite'

K(Mn2+,Mg)3[(OH)2|AlSi3O10]

9.ED.175

Other languages

German

Annit

Spanish

Annita

French

Annite

English

Annite

Russian

Аннит

Traditional Chinese

鐵雲母

Simplified Chinese

铁云母

Alternative Name

Japanese

鉄雲母

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