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Annite (Annit)

Pictures (12 Images total)

Annit
Views (File:
1186664148
): 6002
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
): 5919
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
): 3870
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
): 2700
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
): 4270
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
): 600
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 Annit 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: 22. Mar 2023 - 09:24:40

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

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