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Margarite (Margarit)

Pictures (11 Images total)

Margarit
Views (File:
1293767220
): 4872
Margarit
Bildbreite: 3 mm; Fundort: Grube Gabe Gottes, Ste Marie-aux-Mines, Elsass, Frankreich
Copyright: Richard De Nul; Contribution: Philip Blümner
Location: Frankreich/Grand Est, Region/Haut-Rhin, Département/Colmar-Ribeauvillé, Arrondissement/Sainte-Marie-aux-Mines (Markirch)/Neuenberg/Gang St.Jakob/Grube Gabe Gottes (inkl. Giftgrube)
Mineral: Margarite
Image: 1293767220
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Margarit

Bildbreite: 3 mm; Fundort: Grube Gabe Gottes, Ste Marie-aux-Mines, Elsass, Frankreich
Copyright: Richard De Nul
Contribution: Philip Blümner 2010-12-31
Locality: Grube Gabe Gottes (inkl. Giftgrube) / Gang St.Jakob / Neuenberg / Sainte-Marie-aux-Mines (Markirch) / Colmar-Ribeauvillé, Arrondissement / Haut-Rhin, Département / Grand Est, Region / Frankreich
Margarit
Views (File:
1263986891
): 4888
Margarit
Fo.: Grünig Quarzit-Bruch, St. Jakob, Pfitschtal, Südtirol, Italien, farblose-weiße, blättrige XX BB 9,0mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: B002245, Donator: Manfred Seitz
Location: Italien/Trentino-Südtirol (Trentino-Alto Adige)/Südtirol (Bozen), Provinz/Wipptal, Bezirk/Pfitsch (Pfitschtal)/St. Jakob-Stein/Quarzitbruch Grünig
Mineral: Margarite
Image: 1263986891
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Margarit (SNr: B002245)

Fo.: Grünig Quarzit-Bruch, St. Jakob, Pfitschtal, Südtirol, Italien, farblose-weiße, blättrige XX BB 9,0mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2010-01-20
Locality: Quarzitbruch Grünig / St. Jakob-Stein / Pfitsch (Pfitschtal) / Wipptal, Bezirk / Südtirol (Bozen), Provinz / Trentino-Südtirol (Trentino-Alto Adige) / Italien
Margarit
Views (File:
1263986500
): 4904
Margarit
Fo.: Grünig Quarzit-Bruch St. Jakob, Pfitschtal, Südtirol, Italien, farbose, blättrige XX, BB 5,3mm mit Quarz, Siderit, Turmalin
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A005523, Donator: Manfred Früchtl
Location: Italien/Trentino-Südtirol (Trentino-Alto Adige)/Südtirol (Bozen), Provinz/Wipptal, Bezirk/Pfitsch (Pfitschtal)/St. Jakob-Stein/Quarzitbruch Grünig
Mineral: Margarite
Image: 1263986500
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Margarit (SNr: A005523)

Fo.: Grünig Quarzit-Bruch St. Jakob, Pfitschtal, Südtirol, Italien, farbose, blättrige XX, BB 5,3mm mit Quarz, Siderit, Turmalin
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2010-01-20
Locality: Quarzitbruch Grünig / St. Jakob-Stein / Pfitsch (Pfitschtal) / Wipptal, Bezirk / Südtirol (Bozen), Provinz / Trentino-Südtirol (Trentino-Alto Adige) / Italien
Margarit
Views (File:
1716367663
): 88
Margarit
Fundort: Old Mine Park; Trumbull; Fairfield Co; Connecticut; USA. BB = 20 mm
Copyright: prospector56; Contribution: prospector56
Collection: prospector56, Collection number: J7A11
Location: USA/Connecticut/Fairfield County/Trumbull/Old Mine Park
Mineral: Margarite
Image: 1716367663
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Margarit (SNr: J7A11)

Fundort: Old Mine Park; Trumbull; Fairfield Co; Connecticut; USA. BB = 20 mm
Collection: prospector56
Copyright: prospector56
Contribution: prospector56 2024-05-22
Locality: Old Mine Park / Trumbull / Fairfield County / Connecticut / USA
Margarit
Views (File:
1249163372
): 5245
Margarit
55x22 mm, FO Taquaral, Minas Gerais, Brasilien
Copyright: Embarak; Contribution: Embarak
Collection: Embarak
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Itinga/Taquaral
Mineral: Margarite
Image: 1249163372
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Margarit

55x22 mm, FO Taquaral, Minas Gerais, Brasilien
Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2009-08-01
Locality: Taquaral / Itinga / Minas Gerais / Südosten (Região Sudeste) / Brasilien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color weiß, grau, blassrosa grau, gelblich grau
Streak color weiß
Lustre auf Spaltflächen Perlmuttglanz
Hardness (Mohs) 4
Solubility ++ H2SO4, + HF, +- kochende konz. HCl
Crystal System monoklin, Cc

Additional information / Summary

Chemism

Chemical formula

CaAl2(Al2Si2)O10(OH)2

Chemical composition

Aluminium, Calcium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 398.1846668 u; Number of atoms in the formula: 21

Info

Empirical formula:

CaAl2(Al2Si2)O10(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.51

2

9.52

1.0079470

2.0158940
Oxygen

O

48.22

12

57.14

15.9994300

191.9931600
Aluminium

Al

27.10

4

19.05

26.9815382

107.9261528
Silicon

Si

14.11

2

9.52

28.0855300

56.1710600
Calcium

Ca

10.07

1

4.76

40.0784000

40.0784000

Analysis wt%

SiO2 : 30.84, Al2O3 : 50.76, CaO : 10.52, Na2O : 1.68, H2O : 4.97 (Ref: Chemie der Erde 35)

Strunz 9th edition incl. updates

9.EC.30

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

Lapis Classification

VIII/H.12-040

VIII: SILIKATE
H: Schichtsilikate
12: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Sprödglimmer (Margarit-Reihe)

Classification by Hölzel

9.EE.200

9: SILICATES
E: Phyllosilicates
E: ~[(OH)2|Al2Si2O10] Margarite-Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Mica group  ⇒ Brittle micas

Optical Properties

Color

weiß, grau, blassrosa grau, gelblich grau

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend bis teilweise durchscheinend

Lustre

auf Spaltflächen Perlmuttglanz

max. Birefringence

0.012
Birefringence chart\! Margarite title=Birefringence chart Margarite

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

1.634

RI value β

1.644

RI value γ / ε

1.646

Ri mean

1.641

2V angle

Biaxial (-) 46°

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

monoklin

Class (H-M)

m

Space Group number

9

Space Group

Cc

Cell parameters a (Å)

5.106

Cell parameters b (Å)

8.837

Cell parameters c (Å)

19.166

Cell parameters a/b or c/a

0.578

Cell parameters c/b

2.169

Cell parameters α

90°

Cell parameters β

95.50

Cell parameters γ

90°

Z

4

Volume (ų)

860.822

X-Ray Powder Diffraction

3.180(100),
3.123(10),
2.517(20),
2.508(20),
2.407(10),
1.908(30),
1.903(20),
1.466(20)
XRD chart Margarite

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)

4

VHN (Hardness Vickers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.99 - 3.08 / Durchschnittlich = 3.03

3.072 ( ρ calc. Mineralienatlas )

Instability

++ H2SO4, + HF, +- kochende konz. HCl

(Co-)Type locality

(Co-)Type locality

Österreich/Tirol/Schwaz, Bezirk/Finkenberg/Zamser Grund/Schlegeisgrund (Schlegeisspeicher)/Großer Greiner

Preface

Author (Name, Year)

Fuchs, 1823

References

Canadian Mineralogist 36 (1998), 905

IMA group assignments

 
Mica group
 
 
 

 
 
Brittle micas
 
 
 

 
 
 
Anandite
(Ba,K)(Fe2+,Mg)3(Si,Al,Fe)4O10(S,OH)2
monoklin
C2/c

 
 
 
Bityite
CaLiAl2(AlBeSi2)O10(OH)2
monoklin
C2/c

 
 
 
Chernykhite
BaV2(Si2Al2)O10(OH)2
monoklin
C2/c

 
 
 
Clintonite
Ca(Mg,Al)3(Al3Si)O10(OH)2
monoklin
C2/m, ?

 
 
 
Ferrokinoshitalite
Ba(Fe2+,Mg)3[(OH,F)2|Al2Si2O10]
monoklin
C2/m

 
 
 
Fluorokinoshitalite
BaMg3Al2Si2O10F2
monoklin
C2/m

 
 
 
Kinoshitalite
(Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2
monoklin
C2/m

 
 
 
Margarite
CaAl2(Al2Si2)O10(OH)2
monoklin
Cc

 
 
 
Oxykinoshitalite
(Ba,K)(Mg,Fe2+,Ti4+)3(Si,Al)4O10O2
monoklin
C2/m

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Actuality: 16. May 2025 - 18:01:06

Other languages

German

Margarit

Spanish

Margarita

English

Margarite

French

Margarite

Russian

Маргарит

Simplified Chinese

珍珠云母

Traditional Chinese

珍珠雲母

Alternative Name

Calcium Mica

Clingmanite

German

Corundellit

Spanish

Corundellita

Corundellite

German

Emerylit

Spanish

Emerylita

Emerylite

German

Emeryllit

Spanish

Emeryllita

Emeryllite

Kalkglimmer

German

Koundellit

Perlglimmer

CNMNC symbol

Symbol

Mrg

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Y86HqXDegUyp_obJHnEdtg
GUID (Global unique identifier) A987CE63-DE70-4C81-A9FE-86C91E711DB6
Database ID 2389