'._('einklappen').'
 

Magnesio-gedrite

Collectors Summary

Color grauweiß
Streak color weiß
Hardness (Mohs) 5.00 - 6.00
Cleavages gut
Crystal System orthorhombisch, Pnma

Chemism

Chem­ical formula

(Mg,Fe2+)5Al2Si6Al2O22(OH)2

Chem­ical com­po­si­tion

Aluminium, Eisen, Magnesium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 823.3920218 u; Number of atoms in the formula: 41

Info

Empirical formula:

(Mg0.75Fe0.25)5Al2Si6Al2O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.24

2

4.88

1.0079470

2.0158940

Oxygen

O

46.63

24

58.54

15.9994300

383.9863200

Magnesium

Mg

11.07

3.75

9.15

24.3050600

91.1439750

Aluminium

Al

13.11

4

9.76

26.9815382

107.9261528

Silicon

Si

20.47

6

14.63

28.0855300

168.5131800

Iron

Fe

8.48

1.25

3.05

55.8452000

69.8065000

Strunz 9th edi­tion incl. updates

9.DD.05 [†]

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
D: Ketten- und Bandsilikate mit 2-periodischen Doppelketten, Si4O11; Amphibol-Familie, Orthoamphibole
05:Amphibole: Ortho

IMA sta­tus

diskreditiert vom Amphibol-Subkomitee 1997 = Gedrit

IMA Classification

IMA Clas­sifica­tion

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Magnesium-iron-manganese amphiboles  ⇒ Gedrite (Ged) amphiboles

Optical Properties

Color

grauweiß

Streak color

weiß

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Physical Properties

Hard­ness (Mohs)

5.00 - 6.00

Density (g/cm³)

2.95 (gemessen) 3.18 (berechnet)

Cleav­ages

gut

Preface

Author (Name, Year)

Leake, 1978

References

American Mineralogist 33 (1948), 263.

American Mineralogist 55 (1970), 1945.

American Mineralogist 63 (1978), 1023.

Canadian Mineralogist 35 (1997), 219.

IMA group assignments





 
 
 
 
 
(Fe2+,Mg)5Al2(Si6Al2)O22(OH)2
orthorhombisch
Pnma

 
 
 
 
 
(Mg,Fe2+)5Al2(Si6Al2)O22(OH)2
orthorhombisch
Pnma

 
 
 
 
 
(Mg,Fe2+)5Al2Si6Al2O22(OH)2
orthorhombisch
Pnma

 
 
 
 
 
Na(Mg,Fe2+)6Al(Si6Al2)O22(OH)2
orthorhombisch
Pnma

 
 
 
 
 
NaFe62+Al[OH|AlSi3O11]2
 
 

Refresh list

Actuality: 25. Nov 2021 - 13:38:52

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

Gedrite

(Mg,Fe2+)5Al2(Si6Al2)O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05

Ferrogedrite

(Fe2+,Mg)5Al2(Si6Al2)O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05

Holmquistite

Li2(Mg,Fe2+)3Al2Si8O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05

Anthophyllite

(Mg,Fe2+)7Si8O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05

Sodicgedrite

Na(Mg,Fe2+)6Al(Si6Al2)O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05

Ferro-holmquistite

☐Li2(Fe2+3Al2)(Si8O22)(OH)2

orthorhombisch : mmm : Pnma

9.DD.05

Proto-anthophyllite

(Mg,Fe2+)2Mg5[OH|Si4O11]2·H2O

9.DD.05

Ferro-anthophyllite

☐Fe2+2Fe2+5Si8O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05

Sodic-anthophyllite

NaMg2Mg5(Si7Al)O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05

Proto-ferro-anthophyllite

(Fe2+,Mn2+)2Fe52+[Oh|Si4O11]2

orthorhombisch : mmm : Pnmn

9.DD.05

'Magnesio-gedrite'

(Mg,Fe2+)5Al2Si6Al2O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05 [†]

'Magnesio-holmquistite'

Li2(Mg,Fe++)3Al2Si8O22(OH)2

orthorhombisch : mmm : Pnma

9.DD.05 [†]

Alternative Name

Magnesiogedrit

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

German pages

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

English pages

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

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Magnesio-Gedrit
Crystal-Treasure.com - search for: Magnesio-Gedrit
Bosse - search for: Magnesio-Gedrit