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Zhangpeishanite (Zhangpeishanit)

Collectors Summary

Color farblos
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 2.5
Cleavages vollkommen (001)
Crystal System tetragonal, P4/mmm

Chemism

Chemical formula

BaFCl

Additional chem. information

Matlockit Gruppe

Chemical composition

Barium, Chlor, Fluor

Unit weight: 191.77930325 u; Number of atoms in the formula: 3

Info

Empirical formula:

BaFCl

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Fluorine

F

9.91

1

33.33

18.9984033

18.9984033
Chlorine

Cl

18.49

1

33.33

35.4532000

35.4532000
Barium

Ba

71.61

1

33.33

137.3277000

137.3277000

Strunz 9th edition incl. updates

3.DC.25

3: Halide (Fluoride, Chloride, Bromide, Iodide)
D: Oxihalide, Hydroxyhalide und verwandte Doppel-Halide
C: Mit [Pb] ([As], [Sb], [Bi]) ohne [Cu]
25:Matlockit-Gruppe

Lapis Classification

III/D.09-015

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
D: Oxihalogenide
9: Oxihalogenide mit Pb-Bi-Sb und verwandte Verbindungen

Classification by Hölzel

3.EB.330

3: HALIDES
E: Halides with mostly Pb,As,Sb,Bi,Te
B: With Pb,Bi
3: Matlockite-Group

IMA status

anerkannt Feb. 2007

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

Diaphaneity (Transparency)

transparent

Lustre

Glasglanz

max. Birefringence

0.004
Birefringence chart\! Zhangpeishanite title=Birefringence chart Zhangpeishanite

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

1.656

RI value γ / ε

1.652

Ri mean

1.655

2V angle

Uniaxial (-)

Crystallography

Crystal System

tetragonal

Class (H-M)

4/mmm

Space Group number

123

Space Group

P4/mmm

Cell parameters a (Å)

4.395

Cell parameters b (Å)

-

Cell parameters c (Å)

7.223

Cell parameters a/b or c/a

1.643

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

139.52

X-Ray Powder Diffraction

3.75(100), 3.11(94), 2.79(67), 2.36(82), 2.20(32), 1.898(49), 1.726(34), 1.670(39)
XRD chart Zhangpeishanite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.54 ber.

4.565 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen (001)

Chemical Properties and Tests

wasserlöslich

(Co-)Type locality

(Co-)Type locality

China/Innere Mongolei (Neimenggu)/Baotou/Vereinigtes Darhan-Mumingan-Banner/Bayan Obo/Bayan Obo SE-Fe-Nb-Lagerstätte

Paragenesis of type material

Fluorit, Norsethit, Baryt, Hämatit

Preface

Name from

Professor für Mineralogie Zhang Peishan (Institut für Geologie und Geophysik, Chinesische Akademie der Wissenschaften, Peking)

References

IMA WEB Seite Veröffentlichung Feb. 2007
Mineralien Welt 06/09, Steffen Jahn, Neue Mineralien

Other languages

German

Zhangpeishanit

Spanish

Zhangpeishanita

English

Zhangpeishanite

CNMNC (IMA)-Number

IMA 2006-045

CNMNC symbol

Symbol

Zph

Locations with GPS information

IDs

GUSID (Global unique identifier short form) HyeL0aJDq0meu2yohzAj-w
GUID (Global unique identifier) D18B271F-43A2-49AB-9EBB-6CA8873023FB
Database ID 4493