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Antigorite

Pictures (23 Images total)

Antigorit
Views (Image: 1326021063): 6437
Antigorit  D

Dognaczka, Banat, Rumänien, vor 1920 noch Ungarn. Die Stufe ist auf den Etiketten vom Anfang des 20. Jahrhunderts noch mit dem veralteten Begriff Schweizerit beschrieben, 83x40x42 mm

Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2012-01-08
Locality: Dognecea (Dognaczka; Dognacska) / Banat / Caras-Severin, Kreis / Rumänien
Antigorit
Views (Image: 1570816281): 1745
Antigorit

Antigorit, 6,8 x 4,4 x 2,7 cm. FO: Tilly Foster mine, Brewster, Putnam County, New York, USA

Collection: ex Ken Hollman Collection
Copyright: Rob Lavinsky
Contribution: oliverOliver 2019-10-11
Locality: Tilly Foster Mine / Brewster / Putnam Co. / New York / USA
Serpentin
Views (Image: 1250331115): 23638
Serpentin

Edelserpentin; FO: Hoher Bogen, Bay. Wald, BRD; Größe: 7,5 x 4,5 cm

Collection: rtbstone
Copyright: Archiv: Berthold Stein (rtbstone)
Contribution: rtbstone 2009-08-15
Locality: Hoher Bogen / Cham, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland
Antigorit
Views (Image: 1455568847): 2103
Antigorit

Antigorit, grünlich, auf Serpentinit; Serpentinit-Asbest-Tagebau Kälbel, Dobsina, Slowakei; Stück: 6 x 4 cm

Collection: chribiedav
Copyright: chribiedav
Contribution: chribiedav 2016-02-15
Locality: Kälbel (Teliatko) / Dobschau (Dobsina), Revier / Roznava, Okres / Košický kraj / Slowakei
Antigorit
Views (Image: 1547492436): 926
Antigorit

Steinbruch Dürrer Schlag. BB. 14cm. Antigorit als Harnisch.

Collection: waldi
Copyright: waldi
Contribution: waldi 2019-01-14
Locality: Dürrer Schlag / Thumsenreuth / Krummennaab / Tirschenreuth, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland
Pyrop und Antigorit in Serpentinit
Views (Image: 1415536527): 3737, Rating: 6
Pyrop und Antigorit in Serpentinit

Anschliff, 7,5 x 3 cm; FO: Zöblitz bei Marienberg, Erzgebirge, Sachsen, Deutschland

Copyright: Fritzi
Contribution: Fritzi 2014-11-09
Locality: Serpentinbruch / Zöblitz / Marienberg / Marienberg, Revier / Erzgebirgskreis / Sachsen / Deutschland

Collectors Summary

Color weiß, braun, dunkelgrün
Streak color weiß, grünlichweiß
Hardness (Mohs) 2.50 - 3.00
Solubility von Säuren unter Abscheidung von Kieselsäure zersetzbar (+ HCl, +/- andere Säuren).
Crystal System monoklin, Cm

Chemism

Chem­ical formula

(Mg,Fe2+)3Si2O5(OH)4

Chem­ical com­po­si­tion

Eisen, Magnesium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 300.768003 u; Number of atoms in the formula: 18

Info

Empirical formula:

(Mg0.75Fe0.25)3Si2O5(OH)4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.34

4

22.22

1.0079470

4.0317880

Oxygen

O

47.88

9

50.00

15.9994300

143.9948700

Magnesium

Mg

18.18

2.25

12.50

24.3050600

54.6863850

Silicon

Si

18.68

2

11.11

28.0855300

56.1710600

Iron

Fe

13.93

0.75

4.17

55.8452000

41.8839000

Anal­y­sis wt%

SiO2 : 43.60, Al2O3 : 1.03, Fe2O3 : 0.90, FeO : 0.81, MgO : 41.00, H2O : 12.26

Strunz 9th edi­tion incl. updates

9.ED.15

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
D: Schichtsilikate (Phyllosilikate) mit [Kaolinit]-Schichten, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
15:Serpentin-Gruppe

Lapis Clas­sifica­tion

VIII/H.27-010

VIII: SILIKATE
H: Schichtsilikate
27: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Serpentin-Gruppe

Clas­sifica­tion by Hölzel

9.EM.280

9: SILICATES
E: Phyllosilicates
M: Serpentine-Group
2: Amesite-Group

Dana 8th edi­tion

71.01.02a.01

71: Phyllosilicate Minerals
01: Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings with 1:1 layers
02a: Serpentine group

IMA sta­tus

Mit Anerkennung der CNMNC umbenannt

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Kaolinite-Serpentine Group  ⇒ Serpentine subgroup

Optical Properties

Color

weiß, braun, dunkelgrün

Streak color

weiß, grünlichweiß

max. Birefrin­gence

0.005

Birefringence chart\! Antigorite title=Birefringence chart Antigorite

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

1.562

RI value β

1.566

RI value γ / ε

1.567

Ri mean

1.565

2V angle

Biaxial (-) 61°

Optical Data Luminescence

Color SW-UV (254nm)

 

blau

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

m

Space Group number

8

Space Group

Cm

Cell param­e­ters a (Å)

5.424

Cell param­e­ters b (Å)

9.238

Cell param­e­ters c (Å)

7.274

Cell param­e­ters a/b or c/a

0.587

Cell param­e­ters c/b

0.787

Cell param­e­ters α

90°

Cell param­e­ters β

91.32

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

364.381

X-Ray Pow­der Diffrac­tion

7.29(100),
7.21(10),
3.623(60),
3.589(10),
2.523(30),
2.169(10),
2.150(10),
1.558(10)

XRD chart Antigorite

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)

2.50 - 3.00

VHN (Hard­ness Vick­ers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.61 (gemessen)

2.741 ( ρ calc. Mineralienatlas )

Insta­bil­ity

von Säuren unter Abscheidung von Kieselsäure zersetzbar (+ HCl, +/- andere Säuren).

Chem­ical Prop­er­ties and Tests

Cecilia Viti: Serpentine minerals discrimination by thermal analysis. American Mineralogist 95 (2010) S.631-638.

Preface

Author (Name, Year)

Schweizer, 1840

Addi­tional Informa­tion

Untersuchung der Oberflächenstruktur siehe
Elisa Palacios-Lidon, Olivier Grauby, Claude Henry, Jean-Pierre Astier, Clemens Barth and Alain Baronnet: TEM-assisted dynamic scanning force microscope imaging of (001) antigorite: Surfaces and steps on a modulated silicate. American Mineralogist; 95 (2010) S. 673-685.

References

Reviews in Mineralogy 19 (1988), 91

IMA group assignments

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

Amesite

Mg2Al(SiAl)O5(OH)4

triklin : 1 : C1

9.ED.15

Kellyite

(Mn2+,Mg,Al)3(Si,Al)2O5(OH)4

hexagonal : 6 : P63

9.ED.15

Lizardite

Mg3Si2O5(OH)4

monoklin : m : Cm

9.ED.15

Népouite

(Ni,Mg)3Si2O5(OH)4

orthorhombisch : mm2 : Ccm21

9.ED.15

Pecoraite

Ni3Si2O5(OH)4

9.ED.15

Antigorite

(Mg,Fe2+)3Si2O5(OH)4

monoklin : m : Cm

9.ED.15

Chrysotile

Mg3Si2O5(OH)4

9.ED.15

'Serpentine subgroup'

9.ED.15

Berthierine

(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4

monoklin : 2/m : C2/m

9.ED.15

Brindleyite

(Ni,Mg,Fe2+)2Al(SiAl)O5(OH)4

9.ED.15

Fraipontite

(Zn,Al)3(Si,Al)2O5(OH)4

9.ED.15

Greenalite

(Fe2+,Fe3+)2-3Si2O5(OH)4

monoklin : m : Cm

9.ED.15

Caryopilite

Mn2+3Si2O5(OH)4

monoklin : m : Cm

9.ED.15

Manandonite

Li2Al4[(Si2AlB)O10](OH)8

triklin : 1 : C1

9.ED.15

Cronstedtite

Fe22+Fe3+(SiFe3+)O5(OH)4

trigonal : 3m : P31m

9.ED.15

Guidottiite

Mn2Fe3+(SiFe3+)O5(OH)4

hexagonal : 6 : P63

9.ED.15

'Lizardite-1T' (Pol.v. Lizardite)

Mg3Si2O5(OH)4

trigonal : 3m : P31m

9.ED.15

'Greenalite-1T'

(Fe2+,Fe3+)2-3Si2O5(OH)4

9.ED.15

'Lizardite-2H1' (Pol.v. Lizardite)

Mg3Si2O5(OH)4

hexagonal : 6mm : P63cm

9.ED.15

'Parachrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

9.ED.15

'Clinochrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

monoklin : 2/m : C2/m

9.ED.15

'Orthochrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

orthorhombisch : mm2 : Ccm21

9.ED.15

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

Antigorite

(Mg,Fe2+)3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-010

Lizardite

Mg3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-020

Chrysotile

Mg3Si2O5(OH)4

VIII/H.27-030

Caryopilite

Mn2+3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-055

Greenalite

(Fe2+,Fe3+)2-3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-060

Berthierine

(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4

monoklin : 2/m : C2/m

VIII/H.27-070

Fraipontite

(Zn,Al)3(Si,Al)2O5(OH)4

VIII/H.27-080

Dozyite

Mg7(Al,Fe3+,Cr)2[(OH)12|Al2Si4O15]

monoklin : m : Cm

VIII/H.27-095

Amesite

Mg2Al(SiAl)O5(OH)4

triklin : 1 : C1

VIII/H.27-100

Kellyite

(Mn2+,Mg,Al)3(Si,Al)2O5(OH)4

hexagonal : 6 : P63

VIII/H.27-110

Cronstedtite

Fe22+Fe3+(SiFe3+)O5(OH)4

trigonal : 3m : P31m

VIII/H.27-120

Guidottiite

Mn2Fe3+(SiFe3+)O5(OH)4

hexagonal : 6 : P63

VIII/H.27-130

'Karpinskite'

(Mg,Ni)2Si2O5(OH)2

VIII/H.27-140

Népouite

(Ni,Mg)3Si2O5(OH)4

orthorhombisch : mm2 : Ccm21

VIII/H.27-150

Pecoraite

Ni3Si2O5(OH)4

VIII/H.27-160

Brindleyite

(Ni,Mg,Fe2+)2Al(SiAl)O5(OH)4

VIII/H.27-170

Carlosturanite

(Mg,Fe2+,Ti)21(Si,Al)12O28(OH)34·H2O

monoklin : m : Cm

VIII/H.27-190

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

Donbassite

Al2.3[(OH)8|AlSi3O10]

monoklin : 2 : C2

9.EM.200

'Zinalsite'

Zn7Al4(SiO4)6(OH)2·9H2O

9.EM.220

Chrysotile

Mg3Si2O5(OH)4

9.EM.24

'Clinochrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

monoklin : 2/m : C2/m

9.EM.240

'Orthochrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

orthorhombisch : mm2 : Ccm21

9.EM.245

'Parachrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

9.EM.248

Amesite

Mg2Al(SiAl)O5(OH)4

triklin : 1 : C1

9.EM.250

Manandonite

Li2Al4[(Si2AlB)O10](OH)8

triklin : 1 : C1

9.EM.260

Antigorite

(Mg,Fe2+)3Si2O5(OH)4

monoklin : m : Cm

9.EM.280

Franklinfurnaceite

Ca2(Fe3+,Al)Mn3+Mn32+Zn2Si2O10(OH)8

monoklin : 2 : C2

9.EM.290

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Halloysite-10Å

Al2Si2O5(OH)4·2H2O

monoklin : m : Cc

71.01.01.04

Antigorite

(Mg,Fe2+)3Si2O5(OH)4

monoklin : m : Cm

71.01.02a.01

Caryopilite

Mn2+3Si2O5(OH)4

monoklin : m : Cm

71.01.02b.01

Népouite

(Ni,Mg)3Si2O5(OH)4

orthorhombisch : mm2 : Ccm21

71.01.02b.03

Cronstedtite

Fe22+Fe3+(SiFe3+)O5(OH)4

trigonal : 3m : P31m

71.01.02c.07

'Parachrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

71.01.02d.03

Bismutoferrite

BiFe23+(SiO4)2(OH)

monoklin : m : Cm

71.01.03.01

Chapmanite

Fe3+2Sb3+(SiO4)2(OH)

monoklin : m : Cm

71.01.03.02

Allophane

Al2O3·(SiO2)1.3-2·(H2O)2.5-3

amorph

71.01.04.01

Hisingerite

Fe23+Si2O5(OH)4·2H2O

71.01.04.02

Imogolite

Al2SiO3(OH)4

71.01.04.03

Chrysotile

Mg3Si2O5(OH)4

71.01.05.01

Neotocite

(Mn,Fe2+)SiO3·H2O

amorph

71.01.05.04

Varieties

Bowenite

Alternative Name

English

Balimorite

German

Baltimorit

Spanish

Baltimorita

Baltimorite

Bastard Asbestos

German

Blätterserpentin

German

Eisengymnit

Ferroantigorite

German

Genthit

English

Genthite

German

Gymnit

Spanish

Gymnita

English

Gymnite

English

Iron-Gymnite

English

Jenkinsite

English

Nickel-Gymnite

German

Nickelgymnit

English

Picrolite

Pikrolith

German

Porcellophit

Spanish

Porcellophita

English

Porcellophite

German

Septeantigorit

Spanish

Septeantigorita

Septeantigorite

English

Thermophyllite

English

Yu yen shi stone

English

Yu yen stone

German

Zermattit

Spanish

Zermattita

English

Zermattite

CNMNC symbol

Symbol

Atg

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

German pages

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