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Ferrohagendorfite

Collectors Summary

Color grünlichschwarz
Hardness (Mohs) 5.00 - 5.50
Crystal System monoklin, I2/a

Chemism

Chemical formula

(Na,Ca)2Fe2+(Fe2+,Fe3+)2(PO4)3

Chemical composition

Calcium, Eisen, Natrium, Phosphor, Sauerstoff

Unit weight: 506.9738989 u; Number of atoms in the formula: 20

Info

Empirical formula:

(Na0.75Ca0.25)2Fe(Fe0.75Fe0.25)2(PO4)3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

37.87

12

60.00

15.9994300

191.9931600
Sodium

Na

6.80

1.5

7.50

22.9897702

34.4846553
Phosphorus

P

18.33

3

15.00

30.9737612

92.9212836
Calcium

Ca

3.95

0.5

2.50

40.0784000

20.0392000
Iron

Fe

33.05

3

15.00

55.8452000

167.5356000

Analysis wt%

Na2O : 6.01, CaO : 10.88, FeO : 41.81, P2O5 : 41.30 (Ref: berechnet)

Strunz 9th edition incl. updates

8.AC.10

8: Phosphate, Arsenate, Vanadate
A: Phosphate, etc., ohne weitere Anionen, ohne H2O
C: Mit mittelgroßen und großen [Kationen]
10:Alluaudit-Gruppe

Lapis Classification

VII/A.06-085

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
A: Wasserfreie Phosphate [PO4] 3-, ohne fremde Anionen
6: Mittelgroße und große Kationen: Mg-Mn-Fe-Cu-Zn und Ca-Na; Alluaudit-Gruppe

Classification by Hölzel

8.AC.607

8: PHOSPHATES ARSENATES VANADATES
A: Phosphates (-anions -water)
C: Phosphates, C medium + large
6: Hagendorfite-Group

IMA status

Hypothetisches Mineral (synthetisch, etc.)

IMA Classification

IMA Classification

 Alluaudite supergroup  ⇒ Alluaudite group

Optical Properties

Color

grünlichschwarz

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

I2/a

Cell parameters α

90°

Cell parameters γ

90°

Physical Properties

Hardness (Mohs)

5.00 - 5.50

VHN (Hardness Vickers)

470 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.25

Preface

Author (Name, Year)

Moore & Ito, 1979

References

Mineralogical Magazine 43 (1979), 227

IMA group assignments

Other languages

German

Ferrohagendorfit

Spanish

Ferrohagendorfita

English

Ferrohagendorfite

French

Ferrohagendorfite

Japanese

鉄ﾊｹﾞﾝﾄﾞﾙﾌ鉱

Locations with GPS information

IDs

GUSID (Global unique identifier short form) zUSQV_5X0k-Ug4nPn_TCPA
GUID (Global unique identifier) 579044CD-57FE-4FD2-9483-89CF9FF4C23C
Database ID 1179