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Hydrombobomkulite

Collectors Summary

Color himmelblau
Streak color hellblau
Cleavages {001} vollkommen
Solubility +++ H2O, dehydratisiert
Crystal System monoklin,

Chemism

Chemical formula

(Ni,Cu)Al4[(NO3)2,(SO4)](OH)12·13-14H2O

Chemical composition

Aluminium, Kupfer, Nickel, Sauerstoff, Schwefel, Stickstoff, Wasserstoff

Unit weight: 732.1515108 u; Number of atoms in the formula: 76.75

Info

Empirical formula:

(Ni0.75Cu0.25)Al4[((NO3)2)0.75((SO4))0.25](OH)12·13.5H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

5.37

39

50.81

1.0079470

39.3099330
Nitrogen

N

2.87

1.5

1.95

14.0067200

21.0100800
Oxygen

O

67.74

31

40.39

15.9994300

495.9823300
Aluminium

Al

14.74

4

5.21

26.9815382

107.9261528
Sulfur

S

1.09

0.25

0.33

32.0655000

8.0163750
Nickel

Ni

6.01

0.75

0.98

58.6934200

44.0200650
Copper

Cu

2.17

0.25

0.33

63.5463000

15.8865750

Analysis wt%

NiO : 6.70, CuO : 3.59, Al2O3 : 27.50, N2O5 : 10.92, SO3 : 2.70, H2O : 48.59 (Ref: berechnet)

Strunz 9th edition incl. updates

5.ND.15

5: Carbonate (Carbonate, Nitrate)
N: Nitrate
D: Mit OH (etc.) und H2O
15:Hydrombobomkulit-Gruppe

Lapis Classification

VI/D.08-080

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
8: Mittelgroße Kationen

Classification by Hölzel

7.DD.925

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
D: Sulfate-Hydrotalcites

Dana 8th edition

19.01.04.02

19: Nitrates - Hydroxyl or Halogen
01: Nitrates - Hydroxyl or Halogen with miscellaneous formulae
04: Mbobomkulite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

himmelblau

Streak color

hellblau

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Cell parameters a (Å)

10.145

Cell parameters b (Å)

17.155

Cell parameters c (Å)

20.870

Cell parameters a/b or c/a

0.591

Cell parameters c/b

1.217

Cell parameters α

90°

Cell parameters β

90.55

Cell parameters γ

90°

Volume (ų)

3631.995

X-Ray Powder Diffraction

10.45(100),
6.233(10),
5.229(50),
4.899(10),
4.172(10),
3.485(30),
3.129(10),
2.489(10)
XRD chart Hydrombobomkulite

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

Physical Properties

Cleavages

{001} vollkommen

Instability

+++ H2O, dehydratisiert

(Co-)Type locality

(Co-)Type locality

Südafrika/Mpumalanga, Provinz/Nelspruit, Distrikt/Mbobo Mkulu Höhle

Preface

Author (Name, Year)

Martini, 1980

References

Annals Geological Survey of South Africa 14 (2) (1980), 1

Other languages

Spanish

Hidrombobomkulita

German

Hydrombobomkulit

French

Hydrombobomkulite

English

Hydrombobomkulite

Russian

Гидромбобомкулит

Traditional Chinese

水硫硝鎳鋁石

Simplified Chinese

水硫硝镍铝石

Alternative Name

Spanish

Hydrombobomkulita

CNMNC (IMA)-Number

IMA 1979-079a

CNMNC symbol

Symbol

Hmbb

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 0-r1e47Y5UG1j_sc-Mcnjw
GUID (Global unique identifier) 7BF5EAD3-D88E-41E5-B58F-FB1CF8C7278F
Database ID 1670