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Aegirine (Akmite)

Pictures (178 Images total)

Aegirin-Sonnen in Charoit
Views (Image: 1239612429): 8843
Aegirin-Sonnen in Charoit

mit weißem Barytocalcit; Bildbreite: 40 mm; Fundort: Vostochnyi, Murun-Massiv, Aldan-Hochland, Jakutien, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-04-13
Locality: Vostochnyi-Gebiet / Murun-Massiv (Murunskyi Massif) / Aldan / Sacha (Sakha, Jakutien, Якутия), Republik / Ferner Osten, Föderationskreis / Russland
Aegirine
Views (Image: 1363229323): 6660
Aegirine

Large, perfect quality and finished all around, aegirine single crystal, from Mount Malosa, Zomba District, Malawi; Size 114 х 8 х 8 mm

Collection: pegmatite
Copyright: pegmatite
Contribution: pegmatite 2013-03-14
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi
Aegirine
Views (Image: 1478114522): 4373
Aegirine

Perfect quality and aesthetic specimen, where aegirine crystals, associated with DT smoky quartz, from Mount Malosa, Zomba District, Malawi; Size 70 х 67 х 34 mm

Collection: pegmatite
Copyright: pegmatite
Contribution: pegmatite 2016-11-02
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi
Aegirine
Views (Image: 1481782892): 1659
Aegirine

Aegirine crystals with orthoclase, from Mount Malosa, Zomba District, Malawi; Size 52 х 37 х 26 mm

Copyright: pegmatite
Contribution: pegmatite 2016-12-15
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi
Ägirin
Views (Image: 1541922653): 414
Ägirin

Poudrette quarry, Mont Saint-Hilaire, Kanada; 32 x 18 x 14 mm;

Collection: Mineralien-Reicht
Copyright: Mineralien-Reicht
Contribution: Mineralien-Reicht 2018-11-11
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Aegirin auf Quarz
Views (Image: 1633079553): 87
Aegirin auf Quarz (SNr: SyS-Aegi-2-1-3)

Diese Strufe mit schönen Aegirinkristallen auf einem Quarzkristall stammt vom Mount Malosa bei Zomba in Malawi. Größe etwa 32 mm.

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2021-10-01
Locality: Mount Malosa / Zomba, Distrikt / Southern Region / Malawi

Collectors Summary

Color grün, grünlich schwarz, rötlichbraun, schwarz
Streak color gelblich grau
Hardness (Mohs) 6
Cleavages gut nach {110}
Fracture uneben
Solubility ++ HF, + HCl, !Ultraschallbad
Crystal System monoklin, C2/c

Chemism

Chem­ical formula

NaFe3+Si2O6

Chem­ical com­po­si­tion

Eisen, Natrium, Silicium, Sauerstoff

Unit weight: 231.0026102 u; Number of atoms in the formula: 10

Info

Empirical formula:

NaFeSi2O6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

41.56

6

60.00

15.9994300

95.9965800

Sodium

Na

9.95

1

10.00

22.9897702

22.9897702

Silicon

Si

24.32

2

20.00

28.0855300

56.1710600

Iron

Fe

24.18

1

10.00

55.8452000

55.8452000

Anal­y­sis wt%

SiO2 : 52.10, TiO2 : 0.64, Fe2O3 : 33.10, FeO : 0.64, Na2O : 12.90 (Ref: Journal of Petrology 62)

Strunz 9th edi­tion incl. updates

9.DA.25

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
A: Ketten- und Bandsilikate mit 2 periodischen Ketten SiO6; Pyroxen-Familie
25:Na Klinopyroxene; Jadeit-Gruppe

Lapis Clas­sifica­tion

VIII/F.01-140

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

Clas­sifica­tion by Hölzel

9.DD.200

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
D: Jadeite-Group

Dana 8th edi­tion

65.01.03c.02

65: Inosilicate Minerals
01: Inosilicates Inosilicate Single-Width Unbranched Chains, W=1 with chains P=2
03c: C2/c clinopyroxenes (Na clinopyroxenes)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Pyroxene group  ⇒ Clinopyroxene group

Optical Properties

Color

grün, grünlich schwarz, rötlichbraun, schwarz

Streak color

gelblich grau

Diaphane­ity (Trans­parency)

teilweise transparent bis durchscheinend bis opak

max. Birefrin­gence

0.056

Birefringence chart\! Aegirine title=Birefringence chart Aegirine

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

1.767

RI value β

1.806

RI value γ / ε

1.823

Ri mean

1.799

2V angle

Biaxial (-) 60°

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

9.657

Cell param­e­ters b (Å)

8.801

Cell param­e­ters c (Å)

5.291

Cell param­e­ters a/b or c/a

1.097

Cell param­e­ters c/b

0.601

Cell param­e­ters α

90°

Cell param­e­ters β

107.40

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

429.111

X-Ray Pow­der Diffrac­tion

6.369(90),
4.416(80),
3.188(50),
2.983(70),
2.900(100),
2.470(60),
1.729(60),
1.397(60)

XRD chart Aegirine

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)

6

VHN (Hard­ness Vick­ers)

730 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.5 - 3.54 / Durchschnittlich = 3.52

3.575 ( ρ calc. Mineralienatlas )

Cleav­ages

gut nach {110}

Frac­ture

uneben

Insta­bil­ity

++ HF, + HCl, !Ultraschallbad

Preface

Occurrences

in magmatischen Gesteinen und in basischen Graniten

Name from

dem nordischen Meeresgott Ägire

Author (Name, Year)

Berzelius, 1835 / Esmark, 1835

Addi­tional Informa­tion

s.a. > Mineralienportrait/Pyroxene

References

Canadian Mineralogist 36 (1998), 779

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde (1835), 184

American Mineralogist 93 (2008), 1829

IMA group assignments



 
 
 
NaFe3+Si2O6
monoklin
C2/c

 
 
 
(Ca,Na)(Fe3+,Mg,Fe2+)Si2O6
monoklin
C2/c

 
 
 
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
monoklin
C2/c

 
 
 
Mg2Si2O6
monoklin
P21/c

 
 
 
Fe2+2Si2O6
monoklin
P21/c

 
 
 
NaTi3+Si2O6
monoklin
C2/c

 
 
 
CaMgSi2O6
monoklin
C2/c

 
 
 
CaFe3+AlSiO6
monoklin
C2/c

 
 
 
CaTi3+AlSiO6
monoklin
C2/c

 
 
 
CaFe2+Si2O6
monoklin
C2/c

 
 
 
Na(Al,Fe3+)Si2O6
monoklin
C2/c

 
 
 
(Na,Ca,Fe2+)(Sc,Mg,Fe2+)Si2O6
monoklin
C2/c

 
 
 
CaMnSi2O6
monoklin
C2/c

 
 
 
MnMgSi2O6
monoklin
P21/c

 
 
 
NaCr3+Si2O6
monoklin
C2/c

 
 
 
CaAl2SiO6
monoklin
C2/c

 
 
 
NaMn3+[Si2O6]
monoklin
C2/c

 
 
 
Na(V3+,Cr3+)Si2O6
monoklin
C2/c

 
 
 
(Ca,Na)(Mg,Fe2+,Fe3+,Al)Si2O6
monoklin
C2/c, P2/n

 
 
 
Ca(Zn,Mn2+,Fe2+,Mg)Si2O6
monoklin
C2/c

 
 
 
(Mg,Fe,Ca)2Si2O6
monoklin
P21/c

 
 
 
CuMgSi2O6
monoklin
P21/c

 
 
 
LiAlSi2O6
monoklin
C2/c

 
 
 
(Ca,Na,☐)AlSi2O6
monoklin
C2/c

Refresh list

Actuality: 27. Jun 2022 - 17:41:22

Varieties

Titanian Aegirine

Ti4+-haltiger Aegirin

Other languages

Dutch

Aegirien

German

Aegirin

English

Aegirine

French

Aegirine

Spanish

Aerinita

Finnish

Akmiitti

Polish

Egiryn

Estonian

Ägiriin

Ukrainian

Егірин-авгіт

Russian

Шефферит

Russian

Эгирин

Hebrew

אגירין

Japanese

エジリン輝石

Simplified Chinese

霓石

Japanese

エジリン

Alternative Name

Achirit

Achmit

Achmite

Acmit

Acmita

Acmite

Acnit

Acnita

Acnite

Aegerine

Aegerit

Aegerita

Aegerite

Aegir

Aegirit

Aegirita

Aegirite

Aegyrina

Aegyrine

Aegyrit

Aegyrita

Aegyrite

Aemit

Aemita

Aemite

Agerit

Agerite

Agirine

Aigirin

Akmit

Akmite

Egirina

Jadeite-Aegirine

Natrongirin

Natronägirin

Soda-Aegirite

Ägirin

Norwegian (Bokmål)

Ægirin

Japanese

錐輝石

CNMNC symbol

Symbol

Aeg

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Шефферит

Mineral Dealer

German pages

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

Locations with GPS information