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Enstatite

Pictures (67 Images total)

Enstatit
Views (Image: 1646171001): 545
Enstatit  E
Analysed with energy dispersive X-ray spectroscopy EDX
R
Analysed with RAMAN spectroscopy

Hellbraune Enstatit Kristalle zusammen mit dünnen Fluorophlogopit Tafeln im Hohlraum eines Xenolithen; Bildbreite 5mm; Fundort: Steinbr. Wartgesberg, Strohn, Daun, RLP, DE; Analyse mit Raman-Spektr...

Collection: guefz
Copyright: guefz
Contribution: guefz 2022-03-01
Locality: Wartgesberg / Strohn / Daun / Vulkaneifel, Landkreis / Rheinland-Pfalz / Deutschland
Enstatit auf Hämatit
Views (Image: 1255428536): 13198, 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): 8465
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): 9483, 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): 6076, Rating: 8.75
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): 7893
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

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



 
 
 
(Mn,Mg)MgSi2O6
orthorhombisch
Pbca

 
 
 
Mg2Si2O6
orthorhombisch
Pbca

 
 
 
(Fe2+,Mg)2Si2O6
orthorhombisch
Pbca

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Actuality: 25. Jun 2022 - 16:16:05

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

CNMNC symbol

Symbol

En

Rock part of

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Hint

- Essential mineral - Important for the classification of the rock.
- Accessory or non-essential mineral - this minerals are common, sometimes major part of, but are not always present.

Actuality: 25. Jun 2022 - 16:16:05

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

German pages

DeWikiPedia - search for: Enstatit
Google-Bilder-Suche - search for: Enstatit
Mineralienatlas.de (Forum) - search for: Enstatit

English pages

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

Russian pages

Webmineral.ru - search for: Энстатит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Enstatit
Crystal-Treasure.com - search for: Enstatit
Bosse - search for: Enstatit
Edelsteine Neuburg - Gundolf Fischer - search for: Enstatit

Locations with GPS information