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Annite

Pictures (12 Images total)

Annit
Views (File:
1186664148
): 6104
Annit
Fundort: Stbr. Stolz, Hillesheim, Eifel, Rheinland-Pfalz, Deutschland; Bildbreite: 8 mm
Copyright: Stephan Wolfsried; Contribution: Hg
Collection: Willi Schüller, Adenau
Location: Deutschland/Rheinland-Pfalz/Vulkaneifel, Landkreis/Hillesheim/Steinbruch Stolz (Graulai; Graulay)
Mineral: Annite
Image: 1186664148
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
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 (File:
1166724107
): 5956
Annit
Bildbreite: 8 mm; Fundort Emmelberg, Üdersdorf, , Eifel, Rheinland-Pfalz, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Rheinland-Pfalz/Vulkaneifel, Landkreis/Daun/Üdersdorf/Emmelberg
Mineral: Annite
Image: 1166724107
Rating: 8.33 (votes: 3)
License: Usage for Mineralienatlas project only
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 (File:
1275924317
): 3899
Annit
Größe: 6,8 x 5,4 x 4,6 cm, Fundort: Rockport, Essex Co., Massachusetts, USA
Copyright: Rob Lavinsky; Contribution: thdun5
Location: USA/Massachusetts/Essex Co./Rockport
Mineral: Annite
Image: 1275924317
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
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 (File:
1338997912
): 2727
Annit
Blättrige schwarze Kristalle bilden Kristallpakete, BB = 7,4 mm, Fundort: AS-Granit-Steinbruch, Tvedalen, Brunlanes, Vestfold, Norwegen.
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A025895, Donator: Lars O. Kvamsdal
Location: Norwegen/Vestfold og Telemark, Provinz/Larvik/Tvedalen/Tuften/AS Granit-Larvikit-Steinbruch
Mineral: Annite
Image: 1338997912
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
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 (File:
1329654224
): 4303
Annit
Deutschland, Rheinland-Pfalz, Eifel, Emmelberg; x - 0,9 mm; Fund: 09.1990;
Copyright: hkern; Contribution: hkern
Collection: hkern
Location: Deutschland/Rheinland-Pfalz/Vulkaneifel, Landkreis/Daun/Üdersdorf/Emmelberg
Mineral: Annite
Image: 1329654224
License: Usage for Mineralienatlas project only
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 (File:
1459528755
): 618
Annit
Annit X (Lepidomelan); Stufe ist ca. 12 x 10 cm; Annit X 5 cm H und 6 cm D; Saga Tvedalen Norwegen
Copyright: Michael & Maren S; Contribution: PriMus1
Collection: Privat - Museum M+M. Sendelbach
Location: Norwegen/Vestfold og Telemark, Provinz/Porsgrunn/Mørje/Sagåsen (Strandåsen)/Saga 1
Mineral: Annite
Image: 1459528755
License: Usage for Mineralienatlas project only
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

You find additional specimen at the Geolitho Museum

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

 
Mica group
 
 
 

 
 
True micas
 
 
 

 
 
 
Aluminoceladonite
K(Mg,Fe2+)Al[(OH)2|Si4O10]
monoklin
 

 
 
 
Annite
KFe2+3(Si3Al)O10(OH,F)2
monoklin
C2/m

 
 
 
Aspidolite
NaMg3(AlSi3)O10(OH)2
monoklin
C2/m

 
 
 
Boromuscovite
KAl2(Si3B)O10(OH,F)2
monoklin
C2/m

 
 
 
Celadonite
K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2
monoklin
C2

 
 
 
Chromphyllite
K(Cr,Al)2[(OH,F)2|AlSi3O10]
monoklin
C2/c

 
 
 
Eastonite
KMg2Al[(OH)2|Al2Si2O10]
monoklin
C2

 
 
 
Ephesite
NaLiAl2(Al2Si2)O10(OH)2
monoklin
Cc

 
 
 
Ferroaluminoceladonite
K(Fe2+,Mg)(Al,Fe3+)[(OH)2|Si4O10]
monoklin
C2/m

 
 
 
Ferroceladonite
K(Fe2+,Mg)(Fe3+,Al)[(OH)2|Si4O10]
monoklin
C2/m

 
 
 
Fluorannite
KFe32+[(F,OH)2|AlSi3O10]
monoklin
C2/m

 
 
 
Ganterite
(Ba,Na,K)(Al,Mg)2[(OH,F)2|(Al,Si)Si2O10]
monoklin
C2/c

 
 
 
Hendricksite
K(Zn,Mn)3Si3AlO10(OH)2
monoklin
C2/m

 
 
 
Masutomilite
K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2
monoklin
C2

 
 
 
Montdorite
KMn0.52+Fe1.52+Mg0.5[F2|Si4O10]
monoklin
C2/m

 
 
 
Muscovite
KAl2(Si3Al)O10(OH,F)2
monoklin
C2/c

 
 
 
Nanpingite
CsAl2(Si,Al)4O10(OH,F)2
monoklin
C2/c

 
 
 
Norrishite
KLiMn3+2Si4O12
monoklin
C2/m

 
 
 
Paragonite
NaAl2(Si3Al)O10(OH)2
monoklin
C2/c

 
 
 
Phlogopite
KMg3(Si3Al)O10(F,OH)2
monoklin
C2/m

 
 
 
Polylithionite
KLi2AlSi4O10(F,OH)2
monoklin
C2/m

 
 
 
Preiswerkite
NaMg2Al3Si2O10(OH)2
monoklin
C2/m

 
 
 
Roscoelite
K(V,Al,Mg)2AlSi3O10(OH)2
monoklin
C2/m

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

 
 
 
Siderophyllite
KFe22+Al(Al2Si2)O10(F,OH)2
monoklin
C2/m

 
 
 
Sokolovaite
CsLi2AlSi4O10F2
monoklin
 

 
 
 
Tainiolite
KLiMg2Si4O10F2
monoklin
C/2m

 
 
 
Tetraferriannite
KFe2+3(Si3Fe3+)O10(OH)2
monoklin
C2/m

 
 
 
Tetraferriphlogopite
KMg3[(F,OH)2|(Al,Fe3+)Si3O10]
monoklin
C2/m

 
 
 
Tobelite
(NH4,K)Al2(Si3Al)O10(OH)2
monoklin
C2/m

 
 
 
Trilithionite
KLi1.5Al1.5[F2|AlSi3O10]
monoklin
C2/m

 
 
 
Yangzhumingite
KMg2.5Si4O10F2
monoklin
C2/m

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Actuality: 20. Sep 2023 - 09:20:42

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

CNMNC symbol

Symbol

Ann

Locations with GPS information

IDs

GUSID (Global unique identifier short form) hdUo9j0tR0mrTor7YnZ15w
GUID (Global unique identifier) F628D585-2D3D-4947-AB4E-8AFB627675E7
Database ID 138