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Enstatite

Pictures (63 Images total)

Enstatit auf Hämatit
Views (Image: 1255428536): 12110, Rating: 9.62
Enstatit auf Hämatit

Bildbreite: 3 mm; Fundort: Mayener Bellerberg, Mayener Feld, Ettringer Bellerberg, Ettringen, Eifel, Deutschland

Copyright: Stephan Wolfsried
Contribution: Hg 2009-10-13
Locality: Mayener Bellerberg / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Enstatit
Views (Image: 1307954449): 7596
Enstatit

Größe: 1,3 mm; Fundort: Canteras de la Aljorra, La Aljorra, Campo de Cartagena, Murcia, Spanien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2011-06-13
Locality: La Aljorra Quarries / La Aljorra / Sierra de Cartagena / Murcia / Spanien
Enstatit
Views (Image: 1248353016): 8641, Rating: 9.27
Enstatit

Bildbreite: 3 mm; Fundort: Roc de Courlande, Chastreix, Monts-Dore-Massiv, Puy-de-Dôme, Auvergne, Frankreich

Copyright: Jean-Marc Johannet
Contribution: Hg 2009-07-23
Locality: Roc de Courlande / Chastreix / Issoire, Arrondissement / Puy-de-Dôme, Département / Auvergne-Rhône-Alpes, Region / Frankreich
Enstatit
Views (Image: 1174918210): 5268
Enstatit

Bildbreite: 3 mm; Fundort Stbr. Caspar, Ettringer Bellerberg, Ettringen, Mayen, Eifel

Copyright: Stephan Wolfsried
Contribution: Hg 2007-03-26
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Enstatit
Views (Image: 1248353052): 7392
Enstatit

Bildbreite: 3 mm; Fundort: Roc de Courlande, Chastreix, Monts-Dore-Massiv, Puy-de-Dôme, Auvergne, Frankreich

Copyright: Jean-Marc Johannet
Contribution: Hg 2009-07-23
Locality: Roc de Courlande / Chastreix / Issoire, Arrondissement / Puy-de-Dôme, Département / Auvergne-Rhône-Alpes, Region / Frankreich
Enstatit
Views (Image: 1408385825): 820
Enstatit (SNr: A027973)

Langtafelige gelbe Kristalle, BB = 3,4 mm, Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Deutschland.

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2014-08-18
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland

Collectors Summary

Color weiß, gelblich grün, braun, grünlichweiß, grau
Streak color grau
Lustre Perlmuttglanz, Glasglanz
Hardness (Mohs) 5 - 6
Cleavages deutlich, gut {210}
Fracture unregelmäßig, uneben
Solubility + HF
Crystal System orthorhombisch, Pbca

Additional information / Summary

Siehe auch nach Enstatit in unserem Mineralienportrait über Pyroxene

Chemism

Chem­ical formula

Mg2Si2O6

Chem­ical com­po­si­tion

Magnesium, Silicium, Sauerstoff

Unit weight: 200.77776 u; Number of atoms in the formula: 10

Info

Empirical formula:

Mg2Si2O6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

47.81

6

60.00

15.9994300

95.9965800

Magnesium

Mg

24.21

2

20.00

24.3050600

48.6101200

Silicon

Si

27.98

2

20.00

28.0855300

56.1710600

Anal­y­sis wt%

SiO2 : 57.73, Al2O3 : 0.95, Fe2O3 : 0.42, Cr2O3 : 0.46, FeO : 3.57, MgO : 36.13, H2O : 0.56 (Ref: Am.J.Sci.52)

Strunz 9th edi­tion incl. updates

9.DA.05

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
A: Ketten- und Bandsilikate mit 2 periodischen Ketten SiO6; Pyroxen-Familie
05:Orthopyroxene

Lapis Clas­sifica­tion

VIII/F.02-010

VIII: SILIKATE
F: Ketten- und Bandsilikate
2: Zweierketten [Si2O6] 4-; Pyroxen-Gruppe; Orthopyroxene

Clas­sifica­tion by Hölzel

9.DE.100

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
E: Orthorhombic Pyroxenes and Pyroxenoides
1: Enstatite-Group

Hey's Chem­ical Index of Min­er­als

14.04.02

14: Silicates not Containing Aluminum
04: Silicates of Mg

Dana 8th edi­tion

65.01.02.01

65: Inosilicate Minerals
01: Inosilicates Inosilicate Single-Width Unbranched Chains, W=1 with chains P=2
02: Orthopyroxenes

IMA sta­tus

Anerkannt von der CNMNC, Pyroxen Subkommittee (1988)

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Pyroxene group  ⇒ Orthopyroxene group

Optical Properties

Color

weiß, gelblich grün, braun, grünlichweiß, grau

Streak color

grau

Diaphane­ity (Trans­parency)

durchscheinend bis opak

Lus­tre

Perlmuttglanz, Glasglanz

max. Birefrin­gence

0.008

Birefringence chart\! Enstatite title=Birefringence chart Enstatite

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

1.650

RI value β

1.652

RI value γ / ε

1.658

Ri mean

1.653

2V angle

Biaxial (+) 60°!

Optical Data Luminescence

Color LW-UV (365nm)

 

bläulich weiß

LW-UV Intensity

schwach

Most Common Acti­vator

TiO6

Other Acti­vators

Mn2+, O

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Ther­mo­lu­mi­nes­cence

vorhanden

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

61

Space Group

Pbca

Cell param­e­ters a (Å)

18.230

Cell param­e­ters b (Å)

8.840

Cell param­e­ters c (Å)

5.188

Cell param­e­ters a/b or c/a

2.062

Cell param­e­ters c/b

0.587

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

836.063

X-Ray Pow­der Diffrac­tion

4.411(20),
3.168(70),
3.150(50),
2.870(100),
2.630(20),
1.518(10),
1.484(20),
1.470(20)

XRD chart Enstatite

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)

5 - 6

VHN (Hard­ness Vick­ers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.1 - 3.3 (gemessen) 3.204 (berechnet)

3.19 ( ρ calc. Mineralienatlas )

Cleav­ages

deutlich, gut {210}

Frac­ture

unregelmäßig, uneben

Radioac­tiv­ity

keine bekannt

Insta­bil­ity

+ HF

Preface

Asso­cia­tions

Olivin, Phlogopit, Klinopyroxen, Diopsid, Spinell und Pyrop.

Author (Name, Year)

Kenngott, 1855

References

Mineralogical Magazine 35 (1966), 838.

Mineralogical Magazine 52 (1988), 535.

American Mineralogist 77 (1992), 115.

European Journal of Mineralogy 5 (1993), 707.

Handbook of Mineralogy (Anthony u.a.), 2 (1995), 214.

American Mineralogist 80 (1995), 253.

American Mineralogist 81 (1996), 842.

Tarantino, S.C., Domeneghetti, M.C., Carpenter, M.A., Shaw, C.J.S., and Tazzoli, V. (2002a) Mixing properties of the enstatite-ferrosilite solid solution: I. A macroscopic perspective. European Journal of Mineralogy 14, 525-536.

Journal of Mineralogical and Petrological Sciences 96 (2001), 48.

Tarantino, S.C., Boffa Ballaran, T., Carpenter, M.A., Domeneghetti, M.C., and Tazzoli, V. (2002b) Mixing properties of the enstatite-ferrosilite solid solution: II A microscopic perspective. Eurpean Journal of Mineralogy 14, 537-547.

European Journal of Mineralogy 15 (2003), 365.

American Mineralogist 89 (2004), 239.

IMA group assignments

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

Enstatite

Mg2Si2O6

orthorhombisch : mmm : Pbca

9.DA.05

Ferrosilite

(Fe2+,Mg)2Si2O6

orthorhombisch : mmm : Pbca

9.DA.05

Donpeacorite

(Mn,Mg)MgSi2O6

orthorhombisch : mmm : Pbca

9.DA.05

Protoenstatite

Mg2Si2O6

orthorhombisch : mmm : Pbcn

9.DA.05

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

Enstatite

Mg2Si2O6

orthorhombisch : mmm : Pbca

VIII/F.02-010

Ferrosilite

(Fe2+,Mg)2Si2O6

orthorhombisch : mmm : Pbca

VIII/F.02-020

Donpeacorite

(Mn,Mg)MgSi2O6

orthorhombisch : mmm : Pbca

VIII/F.02-030

Nchwaningite

Mn2SiO3(OH)2·H2O

orthorhombisch : mm2 : Pca21

VIII/F.02-040

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

Enstatite

Mg2Si2O6

orthorhombisch : mmm : Pbca

9.DE.100

Donpeacorite

(Mn,Mg)MgSi2O6

orthorhombisch : mmm : Pbca

9.DE.110

'Hypersthene'

9.DE.140

Ferrosilite

(Fe2+,Mg)2Si2O6

orthorhombisch : mmm : Pbca

9.DE.150

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

Clinoenstatite

Mg2Si2O6

monoklin : 2/m : P21/c

65.01.01.01

Clinoferrosilite

Fe2+2Si2O6

monoklin : 2/m : P21/c

65.01.01.02

Kanoite

MnMgSi2O6

monoklin : 2/m : P21/c

65.01.01.03

Pigeonite

(Mg,Fe,Ca)2Si2O6

monoklin : 2/m : P21/c

65.01.01.04

Enstatite

Mg2Si2O6

orthorhombisch : mmm : Pbca

65.01.02.01

Ferrosilite

(Fe2+,Mg)2Si2O6

orthorhombisch : mmm : Pbca

65.01.02.02

Donpeacorite

(Mn,Mg)MgSi2O6

orthorhombisch : mmm : Pbca

65.01.02.03

Diopside

CaMgSi2O6

monoklin : 2/m : C2/c

65.01.03a.01

Augite

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6

monoklin : 2/m : C2/c

65.01.03a.03

Johannsenite

CaMnSi2O6

monoklin : 2/m : C2/c

65.01.03a.04

Petedunnite

Ca(Zn,Mn2+,Fe2+,Mg)Si2O6

monoklin : 2/m : C2/c

65.01.03a.05

Esseneite

CaFe3+AlSiO6

monoklin : 2/m : C2/c

65.01.03a.06

Omphacite

(Ca,Na)(Mg,Fe2+,Fe3+,Al)Si2O6

monoklin : 2/m, 2/m : C2/c, P2/n

65.01.03b.01

Aegirine-augite

(Ca,Na)(Fe3+,Mg,Fe2+)Si2O6

monoklin : 2/m : C2/c

65.01.03b.02

Jadeite

Na(Al,Fe3+)Si2O6

monoklin : 2/m : C2/c

65.01.03c.01

Aegirine

NaFe3+Si2O6

monoklin : 2/m : C2/c

65.01.03c.02

Namansilite

NaMn3+[Si2O6]

monoklin : 2/m : C2/c

65.01.03c.03

Kosmochlor

NaCr3+Si2O6

monoklin : 2/m : C2/c

65.01.03c.04

Natalyite

Na(V3+,Cr3+)Si2O6

monoklin : 2/m : C2/c

65.01.03c.05

Jervisite

(Na,Ca,Fe2+)(Sc,Mg,Fe2+)Si2O6

monoklin : 2/m : C2/c

65.01.03c.06

Spodumene

LiAlSi2O6

monoklin : 2/m : C2/c

65.01.04.01

Carpholite

MnAl2Si2O6(OH)4

orthorhombisch : mmm : Ccca

65.01.05.01

Ferrocarpholite

(Fe2+,Mg)Al2Si2O6(OH)4

orthorhombisch : mmm : Ccca

65.01.05.02

Magnesiocarpholite

MgAl2Si2O6(OH)4

orthorhombisch : mmm : Ccca

65.01.05.03

Balipholite

BaMg2LiAl3Si4O12(OH,F)8

orthorhombisch : mmm : Ccca

65.01.05.04

Potassiccarpholite

K(Mn2+,Li)2Al4Si4O12(OH,F)8

orthorhombisch : mmm : Ccca

65.01.05.05

Vanadiocarpholite

Mn2+V3+Al(Si2O6)(OH)4

orthorhombisch : mmm : Ccca

65.01.05.06

Lorenzenite

Na2Ti2Si2O9

orthorhombisch : mmm : Pbcn

65.01.06.01

Kukisvumite

Na6ZnTi4O4(SiO3)8·4H2O

orthorhombisch : mmm : Pccn

65.01.06.02

Lintisite

Na3LiTi2O2(SiO3)4·2H2O

monoklin : 2/m : C2/c

65.01.06.03

'Manganokukisvumite'

Na6MnTi4Si8O28·4(H2O)

65.01.06.04

Shattuckite

Cu5(SiO3)4(OH)2

orthorhombisch : mmm : Pcab

65.01.07.01

Nchwaningite

Mn2SiO3(OH)2·H2O

orthorhombisch : mm2 : Pca21

65.01.08.01

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

Enstatite

Mg2Si2O6

orthorhombisch : mmm : Pbca

14.04.02

Chrysotile

Mg3Si2O5(OH)4

14.04.04

'Orthochrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

orthorhombisch : mm2 : Ccm21

14.04.06

'Parachrysotile' (Pol.v. Chrysotile)

Mg3Si2O5(OH)4

14.04.07

Talc

Mg3Si4O10(OH)2

monoklin : 2/m : C2/c

14.04.09

Varieties

Bronzite

eine Eisen-haltige Verietät von Enstatit

Other languages

Polish

Bronzyt (od Karsten)

German

Enstatit

Spanish

Enstatita

English

Enstatite

French

Enstatite

Russian

Энстатит

Traditional Chinese

頑火輝石

Simplified Chinese

顽火辉石

Alternative Name

German

Amblystegit

Spanish

Amblystegita

Amblystegite

German

Bronzit (von Karsten)

Spanish

Bronzita (de Karsten)

English

Bronzite (of Karsten)

German

Chladnit

Spanish

Chladnita

Chladnite

German

Cladnit

German

Enstadit

Spanish

Enstadita

Enstadite

German

Ficinit

Spanish

Ficinita

Ficinite

German

O-enstatit

O-enstatite

German

Orthobronzit

Spanish

Orthobronzita

Orthobronzite

German

Orthoenstatit

Spanish

Orthoenstatita

Orthoenstatite

German

Paulit

Spanish

Paulita

Paulite

German

Peckhamit

Spanish

Peckhamita

Peckhamite

German

Protobastit

Spanish

Protobastita

Protobastite

German

Shepardit

Spanish

Shepardita

Shepardite (of Rose)

Italian

Victorita

Victorite

Traditional Chinese

頑輝石

Simplified Chinese

顽辉石

Rock part of

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

German pages

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English pages

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Russian pages

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