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Margarite

Pictures (9 Images total)

Margarit
Views (Image: 1293767220): 3956
Margarit

Bildbreite: 3 mm; Fundort: Grube Gabe Gottes, Ste Marie-aux-Mines, Elsass, Frankreich

Copyright: Richard De Nul
Contribution: slugslayer 2010-12-31
Locality: Grube Gabe Gottes (inkl. Giftgrube) / Gang St.Jakob / Neuenberg / Sainte-Marie-aux-Mines (Markirch) / Ribeauvillé, Arrondissement / Haut-Rhin, Département / Grand Est, Region / Frankreich
Margarit
Views (Image: 1263986891): 3568
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), Region / Italien
Margarit
Views (Image: 1263986500): 4146
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), Region / Italien
Margarit
Views (Image: 1249163372): 4390
Margarit

55x22 mm, FO Taquaral, Minas Gerais, Brasilien

Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2009-08-01
Locality: Taquaral / Itinga / Jequitinhonha, Fluss / Minas Gerais / Südosten (Região Sudeste) / Brasilien
Margarit mit etwas Realgar
Views (Image: 1156799740): 4477
Margarit mit etwas Realgar

Fundort: Güllük, Türkei; Bildausschnitt 4 x 3 mm

Copyright: Torben
Contribution: Torben 2006-08-28
Locality: Güllük / Mugla, Provinz / Ägäisregion / Türkei
Margarith und Korund
Views (Image: 1495703556): 1702
Margarith und Korund

Naxos, Kykladen, Südliche Ägais, Griechenland. H:ca. 15cm.

Collection: Geomuseum Ialisos, Rhodos
Copyright: Doc Diether
Contribution: Doc Diether 2017-05-25
Locality: Naxos, Insel / Kykladen / Südliche Ägäis (Νότιο Αιγαίο) / Griechenland

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

Volumne (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

Preface

Author (Name, Year)

Fuchs, 1823

References

Canadian Mineralogist 36 (1998), 905

IMA group assignments

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

Margarite

CaAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

9.EC.30

Fluorluanshiweiite

KLiAl1.50.5(Si3.5Al0.5)O10F2

monoklin : 2/m : C2/m

9.EC.30

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

Anandite

(Ba,K)(Fe2+,Mg)3(Si,Al,Fe)4O10(S,OH)2

monoklin : 2/m : C2/c

VIII/H.12-010

Bityite

CaLiAl2(AlBeSi2)O10(OH)2

monoklin : 2/m : C2/c

VIII/H.12-020

Oxykinoshitalite

(Ba,K)(Mg,Fe2+,Ti4+)3(Si,Al)4O10O2

monoklin : 2/m : C2/m

VIII/H.12-025

Fluorokinoshitalite

BaMg3Al2Si2O10F2

monoklin : 2/m : C2/m

VIII/H.12-028

Kinoshitalite

(Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2

monoklin : 2/m : C2/m

VIII/H.12-030

Ferrokinoshitalite

Ba(Fe2+,Mg)3[(OH,F)2|Al2Si2O10]

monoklin : 2/m : C2/m

VIII/H.12-035

Margarite

CaAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

VIII/H.12-040

Chernykhite

BaV2(Si2Al2)O10(OH)2

monoklin : 2/m : C2/c

VIII/H.12-050

Hanjiangite

Ba2Ca(V3+Al)(AlSi3O10)(OH)2F(CO3)2

monoklin : m : Cc

VIII/H.12-055

Clintonite

Ca(Mg,Al)3(Al3Si)O10(OH)2

monoklin : 2/m, m : C2/m, ?

VIII/H.12-060

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

Margarite

CaAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

9.EE.200

'Ephesite'

NaLiAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

9.EE.220

Bityite

CaLiAl2(AlBeSi2)O10(OH)2

monoklin : 2/m : C2/c

9.EE.230

Anandite

(Ba,K)(Fe2+,Mg)3(Si,Al,Fe)4O10(S,OH)2

monoklin : 2/m : C2/c

9.EE.250

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

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Маргарит

Mineral Dealer

German pages

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

Locations with GPS information