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Jouravskite

Pictures (14 Images total)

Jouravskit
Views (File:
1518337291
): 256
Jouravskit
Größe: 10,5 x 5,0 x 3,6 cm; Fundort: N'Chwaning III Mine, Kalahari Manganese Field, Provinz Nordkap, Südafrika
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Kuruman/N'Chwaning Mines (NChwaning Mines)/N'Chwaning III Mine
Mineral: Jouravskite
Image: 1518337291
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Jouravskit

Größe: 10,5 x 5,0 x 3,6 cm; Fundort: N'Chwaning III Mine, Kalahari Manganese Field, Provinz Nordkap, Südafrika

Copyright: Rob Lavinsky
Contribution: slugslayer 2018-02-11
Locality: N'Chwaning III Mine / N'Chwaning Mines (NChwaning Mines) / Kuruman / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Jouravskit
Views (File:
1323007098
): 1917
Jouravskit
Bildbreite: 1 mm; Fundort: Tachgagalt Mine, Provinz Ouarzazate, Region Souss-Massa-Draa, Marokko
Copyright: Mabu; Contribution: slugslayer
Collection: Mabu
Location: Marokko/Drâa-Tafilalet, Region/Zagora, Provinz/Agdz, Cercle/Tachgagalt/Tachgagalt Mine
Mineral: Jouravskite
Image: 1323007098
License: Usage for Mineralienatlas project only
Jouravskit

Bildbreite: 1 mm; Fundort: Tachgagalt Mine, Provinz Ouarzazate, Region Souss-Massa-Draa, Marokko

Collection: Mabu
Copyright: Mabu
Contribution: slugslayer 2011-12-04
Locality: Tachgagalt Mine / Tachgagalt / Agdz, Cercle / Zagora, Provinz / Drâa-Tafilalet, Region / Marokko
Jouravskit
Views (File:
1323007121
): 1179
Jouravskit
Bildbreite: 1 mm; Fundort: Tachgagalt Mine, Provinz Ouarzazate, Region Souss-Massa-Draa, Marokko
Copyright: Mabu; Contribution: slugslayer
Collection: Mabu
Location: Marokko/Drâa-Tafilalet, Region/Zagora, Provinz/Agdz, Cercle/Tachgagalt/Tachgagalt Mine
Mineral: Jouravskite
Image: 1323007121
License: Usage for Mineralienatlas project only
Jouravskit

Bildbreite: 1 mm; Fundort: Tachgagalt Mine, Provinz Ouarzazate, Region Souss-Massa-Draa, Marokko

Collection: Mabu
Copyright: Mabu
Contribution: slugslayer 2011-12-04
Locality: Tachgagalt Mine / Tachgagalt / Agdz, Cercle / Zagora, Provinz / Drâa-Tafilalet, Region / Marokko
Jouravskit, Xonotlit, Bultfonteinit
Views (File:
1518336477
): 647
Jouravskit, Xonotlit, Bultfonteinit
Größe: 11,5 x 6,2 x 2,0 cm; Fundort: N'Chwaning III Mine, Kalahari Manganese Field, Provinz Nordkap, Südafrika
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Kuruman/N'Chwaning Mines (NChwaning Mines)/N'Chwaning III Mine
Mineral: Bultfonteinite, Jouravskite, Xonotlite
Image: 1518336477
License: Usage for Mineralienatlas project only
Jouravskit, Xonotlit, Bultfonteinit

Größe: 11,5 x 6,2 x 2,0 cm; Fundort: N'Chwaning III Mine, Kalahari Manganese Field, Provinz Nordkap, Südafrika

Copyright: Rob Lavinsky
Contribution: slugslayer 2018-02-11
Locality: N'Chwaning III Mine / N'Chwaning Mines (NChwaning Mines) / Kuruman / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Jouravskit
Views (File:
1518337214
): 515
Jouravskit
Größe: 14x10x04 mm; Fundort: N'Chwaning III Mine, Kalahari Manganese Field, Provinz Nordkap, Südafrika
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Kuruman/N'Chwaning Mines (NChwaning Mines)/N'Chwaning III Mine
Mineral: Jouravskite
Image: 1518337214
License: Usage for Mineralienatlas project only
Jouravskit

Größe: 14x10x04 mm; Fundort: N'Chwaning III Mine, Kalahari Manganese Field, Provinz Nordkap, Südafrika

Copyright: Rob Lavinsky
Contribution: slugslayer 2018-02-11
Locality: N'Chwaning III Mine / N'Chwaning Mines (NChwaning Mines) / Kuruman / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Jouravskit
Views (File:
1518337239
): 503
Jouravskit
Größe: 16x14x05 mm; Fundort: N'Chwaning III Mine, Kalahari Manganese Field, Provinz Nordkap, Südafrika
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Kuruman/N'Chwaning Mines (NChwaning Mines)/N'Chwaning III Mine
Mineral: Jouravskite
Image: 1518337239
License: Usage for Mineralienatlas project only
Jouravskit

Größe: 16x14x05 mm; Fundort: N'Chwaning III Mine, Kalahari Manganese Field, Provinz Nordkap, Südafrika

Copyright: Rob Lavinsky
Contribution: slugslayer 2018-02-11
Locality: N'Chwaning III Mine / N'Chwaning Mines (NChwaning Mines) / Kuruman / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika

Collectors Summary

Color grün orange, grünlichgelb
Streak color grünlichweiß
Hardness (Mohs) 2.5
Solubility +++ Säuren
Crystal System hexagonal, P63

Chemism

Chemical formula

Ca3Mn4+(SO4,CO3)2(OH)6·12H2O

Chemical composition

Calcium, Mangan, Kohlenstoff, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 667.5007649 u; Number of atoms in the formula: 61.5

Info

Empirical formula:

Ca3Mn((SO4)0.75(CO3)0.25)2(OH)6·12H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

4.53

30

48.78

1.0079470

30.2384100

Carbon

C

0.90

0.5

0.81

12.0107800

6.0053900

Oxygen

O

61.12

25.5

41.46

15.9994300

407.9854650

Sulfur

S

7.21

1.5

2.44

32.0655000

48.0982500

Calcium

Ca

18.01

3

4.88

40.0784000

120.2352000

Manganese

Mn

8.23

1

1.63

54.9380499

54.9380499

Strunz 9th edition incl. updates

7.DG.15

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
G: Mit großen bis mittelgroßen Kationen; mit NO3, CO3, B(OH)4, SiO4 oder IO3
15:Ettringit-Gruppe

Lapis Classification

VI/D.13-030

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
13: Mittelgroße und sehr große Kationen; Ettringit-Gruppe

Classification by Hölzel

7.DK.210

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
K: Ettringite-Group

Dana 8th edition

32.04.04.03

32: Compound Sulfates
04: Compound Sulfates (hydrous) with poly-anionic formula
04: Charlesite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Ettringite group

Optical Properties

Color

grün orange, grünlichgelb

Streak color

grünlichweiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.016

Birefringence chart\! Jouravskite title=Birefringence chart Jouravskite

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

1.556

RI value γ / ε

1.540

Ri mean

1.551

2V angle

Uniaxial (-)

Crystallography

Crystal System

hexagonal

Class (H-M)

6

Space Group number

173

Space Group

P63

Cell parameters a (Å)

11.06

Cell parameters b (Å)

-

Cell parameters c (Å)

10.50

Cell parameters a/b or c/a

0.949

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

2

Volume (ų)

1112.321

Crystal structure

Nikita V. Chukanov, Natalia V. Zubkova, Leonid A. Pautov, Jörg Göttlicher, Anatoly V. Kasatkin, Konstantin V. Van, Dmitriy A. Ksenofontov, Igor V. Pekov, Svetlana A. Vozchikova, Dmitry Yu. Pushcharovsky: Jouravskite: refined data on the crystal structure, chemical composition and spectroscopic properties. Physics and Chemistry of Minerals Volume 46, Issue 4 (2019) S. 417–425.

X-Ray Powder Diffraction

9.6(100),
5.53(80),
3.81(80),
3.54(50),
3.42(70),
2.73(70),
2.52(70),
2.17(70)

XRD chart Jouravskite

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

Crystals 3D

Open larger view

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)

1.95

1.993 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

Preface

Author (Name, Year)

Gaudefroy & Permingeat, 1965

References

Bulletin de la Société Française Minéralogie et de Cristallographie 88 (1965), 254

IMA group assignments

Other languages

German

Jouravskit

Spanish

Jouravskita

English

Jouravskite

French

Jouravskite

Russian

Журавскит

CNMNC (IMA)-Number

IMA 1965-009

CNMNC symbol

Symbol

Jou

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 2vn4e_NdXE6SNJ7tDFhBOA
GUID (Global unique identifier) 7BF8F9DA-5DF3-4E5C-9234-9EED0C584138
Database ID 1817