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Manganoblödite (Manganoblödit)

Collectors Summary

Color farblos, rosa
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 2 - 3
Solubility Löslich bei Raumtemperatur in H2O
Crystal System monoklin, P21/a

Chemism

Chemical formula

Na2Mn(SO4)2·4H2O

Empirical formula (analysis)

Na1.98(Mn0.45Mg0.30Co0.15Ni0.07)Σ0.97S2.06O8·4H2O

Additional chem. information

Das Mn-Analog von Blödit

Chemical composition

Mangan, Natrium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 356.593570986 u; Number of atoms in the formula: 25.01

Info

Empirical formula:

Na1.98(Mn0.45Mg0.30Co0.15Ni0.07)S2.06O8·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.26

8

31.99

1.0079470

8.0635760

Oxygen

O

53.84

12

47.98

15.9994300

191.9931600

Sodium

Na

12.77

1.98

7.92

22.9897702

45.5197450

Magnesium

Mg

2.04

0.3

1.20

24.3050600

7.2915180

Sulfur

S

18.52

2.06

8.24

32.0655000

66.0549300

Manganese

Mn

6.93

0.45

1.80

54.9380499

24.7221225

Cobalt

Co

2.48

0.15

0.60

58.9332009

8.8399801

Nickel

Ni

1.15

0.07

0.28

58.6934200

4.1085394

Strunz 9th edition incl. updates

7.CC.50

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
C: Sulfate (Selenate, etc.) ohne weitere Anionen, mit H2O
C: Mit mittelgroßen und großen [Kationen]
50:Blödit-Gruppe

Lapis Classification

VI/C.18-024

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
C: Wasserhaltige Sulfate, ohne fremde Anionen
18: Mittelgroße und sehr große Kationen

Classification by Hölzel

7.CD.530

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
C: Sulfates (-Anions +Water)
D: Sulfates, C medium + large
5: Blödite-Group

IMA status

anerkannt Juli 2012 - CNMNC Newsletter No. 14, October 2012, page 1282; Mineralogical Magazine, 76, 1281-1288

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, rosa

Streak color

weiß

Diaphaneity (Transparency)

transparent

Lustre

Glasglanz

max. Birefringence

0.008

Birefringence chart\! Manganoblödite title=Birefringence chart Manganoblödite

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

α = 1,493(2)

RI value β

β = 1.498(2)

RI value γ / ε

γ = 1.501(2)

Ri mean

1.497

2V angle

80(10)° (gemessen)

Pleochroism

keiner

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/a

Cell parameters a (Å)

11.137

Cell parameters b (Å)

8.279

Cell parameters c (Å)

5.538

Cell parameters a/b or c/a

1.345

Cell parameters c/b

0.669

Cell parameters α

90°

Cell parameters β

100.42

Cell parameters γ

90°

Z

2

Volume (ų)

502.2

Crystal structure

Struktur bestimmt

X-Ray Powder Diffraction

4.556(70), 4.266(45), 3.791(26), 3.338(21), 3.291(100), 3.256(67), 2.968(22), 2.647(24)

XRD chart Manganoblödite

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 - 3

Density (g/cm³)

2.343 (berechnet)

2.358 ( ρ calc. Mineralienatlas )

Instability

Löslich bei Raumtemperatur in H2O

(Co-)Type locality

(Co-)Type locality

USA/Utah/San Juan Co./White Canyon District/Red Canyon/Blue Lizard Mine

Type material

Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russland

Collection number of type material

4257/1

Preface

Name from

Der Name leitet sich von der chemischen Zusammensetzung und der Zugrhörigkeit zur isomorphen Reihe Manganoblödit - Cobaltoblödit - Mn-Co-Ni-haltiger Blödit ab.

Author (Name, Year)

Fabrizio Nestola, Anatoly V. Kasatkin, Jakub Plášil, Joe Marty, Dmitriy I. Belakovskiy, Atali A. Agakhanov, Danilo Pedron und Stuart J. Mills (2012)

Kasatkin, A.V., Nestola, F., Plášil, J., Marty, J., Belakovskiy, D.I., Agakhanov, A.A., Mills, S.J., Pedron, D., Lanza, A., Favaro, M., Bianchin, S., Lykova, I.S., Goliáš, V., Birch, W.D. - Manganoblödite, Na2Mn(SO4)2·4H2O, and cobaltoblödite, Na2Co(SO4)2·4H2O: two new members of the blödite group from the Blue Lizard mine, San Juan County, Utah, USA - Mineralogical Magazine, Vol.77(3) (2013), pp.367-383

References

CNMNC Newsletter No. 14, October 2012, page 1282; Mineralogical Magazine, 76, 1281-1288

Other languages

German

Manganoblödit

English

Manganoblödite

Russian

Манганоблёдит

CNMNC (IMA)-Number

IMA 2012-029

CNMNC symbol

Symbol

Mblö

Locations with GPS information

IDs

GUSID (Global unique identifier short form) BabchlIah0-_N-7sTSkDrg
GUID (Global unique identifier) 86DCA605-1A52-4F87-BF37-EEEC4D2903AE
Database ID 7438