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Mbobomkulite

Pictures (2 Images total)

Mbobomkulit mit Leesit
Views (File:
1592132183
): 548
Mbobomkulit mit Leesit
blassblau-weißer Mbobomkulit neben gelbem Lessit, Jomac Mine, White Canyon, San Juan County, Utah, USA; BB ~ 2 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: USA/Utah/San Juan Co./White Canyon District/White Canyon/Jomac Mine
Mineral: Leesite, Mbobomkulite
Image: 1592132183
License: Usage for Mineralienatlas project only
Mbobomkulit mit Leesit

blassblau-weißer Mbobomkulit neben gelbem Lessit, Jomac Mine, White Canyon, San Juan County, Utah, USA; BB 2 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-06-14
Locality: Jomac Mine / White Canyon / White Canyon District / San Juan Co. / Utah / USA
Mbobomkulit
Views (File:
1704027667
): 11
Mbobomkulit
Blauer Mbobomkulit (mit weiteren Mineralien, ohne Maßstab) von der Typlokalität Mbobo Mkulu Cave, Nelspruit, Ehlanzeni Distrikt, Prov. Mpumalanga, RSA. Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: Südafrika/Mpumalanga, Provinz/Nelspruit, Distrikt/Mbobo Mkulu Höhle
Mineral: Mbobomkulite
Image: 1704027667
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Mbobomkulit

Blauer Mbobomkulit (mit weiteren Mineralien, ohne Maßstab) von der Typlokalität Mbobo Mkulu Cave, Nelspruit, Ehlanzeni Distrikt, Prov. Mpumalanga, RSA. Ex Van den Broucke Sammlung (sh.: https://www~...

Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-31
Locality: Mbobo Mkulu Höhle / Nelspruit, Distrikt / Mpumalanga, Provinz / Südafrika

Collectors Summary

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

Chemism

Chemical formula

(Ni,Cu)Al4[(NO3)2,(SO4)](OH)12·3H2O

Chemical composition

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

Unit weight: 542.9906088 u; Number of atoms in the formula: 45.25

Info

Empirical formula:

(Ni0.75Cu0.25)Al4[((NO3)2)0.75((SO4))0.25](OH)12·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.34

18

39.78

1.0079470

18.1430460

Nitrogen

N

3.87

1.5

3.31

14.0067200

21.0100800

Oxygen

O

60.40

20.5

45.30

15.9994300

327.9883150

Aluminium

Al

19.88

4

8.84

26.9815382

107.9261528

Sulfur

S

1.48

0.25

0.55

32.0655000

8.0163750

Nickel

Ni

8.11

0.75

1.66

58.6934200

44.0200650

Copper

Cu

2.93

0.25

0.55

63.5463000

15.8865750

Analysis wt%

Al2O3 : 39.42, NiO : 7.98, CuO : 4.28, SO3 : 3.81, N2O5 : 15.23, H2O : 27.90, SiO2 : 1.91 (Ref: American Mineralogist 82)

Strunz 9th edition incl. updates

5.ND.10

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

Lapis Classification

VI/D.08-070

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

Classification by Hölzel

7.DD.920

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

Dana 8th edition

19.01.04.01

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, blaugrün

Streak color

hellblau

max. Birefringence

0.070

Birefringence chart\! Mbobomkulite title=Birefringence chart Mbobomkulite

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

1.515

RI value γ / ε

1.585

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Cell parameters a (Å)

10.171

Cell parameters b (Å)

8.865

Cell parameters c (Å)

17.145

Cell parameters a/b or c/a

1.147

Cell parameters c/b

1.934

Cell parameters α

90°

Cell parameters β

95.37

Cell parameters γ

90°

Z

4

Volume (ų)

1539.11

X-Ray Powder Diffraction

8.550(100),
7.870(10),
4.549(10),
4.271(40),
3.179(10),
3.054(10),
2.512(10),
2.004(10)

XRD chart Mbobomkulite

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

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

2.3

2.343 ( ρ calc. Mineralienatlas )

Cleavages

{001} vollkommen

Instability

+++ H2O

Preface

Author (Name, Year)

Martini, 1980

References

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

Other languages

German

Mbobomkulit

Spanish

Mbobomkulita

English

Mbobomkulite

French

Mbobomkulite

Russian

Мбобомкулит

https://catalogmineralov.ru/mineral/mbobomkulite.html

Traditional Chinese

硫硝鎳鋁石

Simplified Chinese

硫硝镍铝石

CNMNC (IMA)-Number

IMA 1979-078

CNMNC symbol

Symbol

Mbb

Locations with GPS information

IDs

GUSID (Global unique identifier short form) l5RIVMgmM0-HztpFM71yIw
GUID (Global unique identifier) 54489497-26C8-4F33-87CE-DA4533BD7223
Database ID 2428