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Bariopharmakosiderite-C (Bariopharmakosiderit-C)

Collectors Summary

Crystal System kubisch, P43m

Chemism

Chemical formula

(Ba,Ca)0.5-1Fe43+[(OH)4-5|(AsO4)3]·5-7H2O

Empirical formula (analysis)

(Ba0.47K0.04Na0.02) (Fe3.97Al0.03)[(As0.72P0.28)O4]3(OH)4·2.52H2O

Chemical composition

Arsen, Barium, Calcium, Eisen, Sauerstoff, Wasserstoff

Unit weight: 782.352541158 u; Number of atoms in the formula: 35.09

Info

Empirical formula:

(Ba0.47K0.04Na0.02)(Fe3.97Al0.03)[(As0.72P0.28)O4]3(OH)4·2.52H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.16

9.04

25.76

1.0079470

9.1118409

Oxygen

O

37.87

18.52

52.78

15.9994300

296.3094436

Sodium

Na

0.06

0.02

0.06

22.9897702

0.4597954

Aluminium

Al

0.10

0.03

0.09

26.9815382

0.8094461

Phosphorus

P

3.33

0.84

2.39

30.9737612

26.0179594

Potassium

K

0.20

0.04

0.11

39.0983100

1.5639324

Iron

Fe

28.34

3.97

11.31

55.8452000

221.7054440

Arsenic

As

20.69

2.16

6.16

74.9216020

161.8306603

Barium

Ba

8.25

0.47

1.34

137.3277000

64.5440190

Mineral status

Polytype

Variety / polytype of

Bariopharmacosiderite

Crystallography

Crystal System

kubisch

Class (H-M)

43m

Space Group number

215

Space Group

P43m

Cell parameters a (Å)

7.942(1)

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volume (ų)

500.945

Physical Properties

Density (g/cm³)

2.593 ( ρ calc. Mineralienatlas )

References

Hager SL, Leverett P, Williams PA, Mills SJ, Hibbs DE, Raudsepp M, Kampf AR, Birch WD (2010) The single-rystal X-ray structures of bariopharmacosiderite-C, bariopharmacosiderite-Q and natropharmacosiderite. Canadian Mineralogist 48: 1477-1485

Other languages

German

Bariopharmakosiderit-C

English

Bariopharmakosiderite-C

IDs

GUSID (Global unique identifier short form) KAs1B27l5kyi8iJIesa-ow
GUID (Global unique identifier) 07350B28-E56E-4CE6-A2F2-22487AC6BEA3
Database ID 7815