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Metavoltine (Metavoltin)

Pictures (12 Images total)

Metavoltin mit Alunogen
Views (Image: 1221659196): 4593
Metavoltin mit Alunogen

Bildbreite: 2 mm; Königin Carolaschacht, Freital, Döhlener Becken, Dresden, Sachsen, Deutschland

Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-17
Locality: Königin Carolaschacht / Freital / Sächsische Schweiz-Osterzgebirge, Landkreis / Sachsen / Deutschland
Metavoltin
Views (Image: 1520347020): 340
Metavoltin

Italien/Sardinien (Sardegna), Region/Sassari, Provinz/Porto Torres/Argentiera della Nurra; BB-8mm

Collection: anatase2
Copyright: Joerg M.
Contribution: anatase2 2018-03-06
Locality: Argentiera della Nurra / Porto Torres / Sassari, Provinz / Sardinien (Sardegna), Region / Italien
Halotrichit, Metavoltin
Views (Image: 1285261253): 1483
Halotrichit, Metavoltin

Halotrichit (weiß) mit Metavoltin (gelb), Kristallgröße: 0,7 mm, Fundort: Le Cetine, Toskana, Italien

Copyright: Luigi Mattei
Contribution: thdun5 2010-09-23
Locality: Le Cetine di Cotorniano Mine / Chiusdino / Siena, Provinz / Toskana (Toscana) / Italien
Metavoltin
Views (Image: 1288201467): 1077
Metavoltin

Bildbreite: 4 mm, Fundort: Grotta dell'Allume, Porto Levante, Vulcano Insel, Messina, Sizilien, Italien

Collection: Domenico Preite
Copyright: Enrico Bonacina
Contribution: thdun5 2010-10-27
Locality: Grotta dell'Allume / Porto Levante / Vulcano, Insel / Äolische (Liparische) Inseln (Isole Eolie; Isole Lipari) / Messina, Provinz / Sizilien (Sicilia), Region / Italien
Metavoltin
Views (Image: 1520625031): 221
Metavoltin

Italien/Toskana (Toscana)/Siena, Provinz/Chiusdino/Le Cetine di Cotorniano Mine; BB-5,5cm-gelb/grün

Collection: anatase2
Copyright: Joerg M.
Contribution: anatase2 2018-03-09
Locality: Le Cetine di Cotorniano Mine / Chiusdino / Siena, Provinz / Toskana (Toscana) / Italien
Metavoltin-Clairit
Views (Image: 1146045025): 1080
Metavoltin-Clairit

Metavoltin/Clairit; Fundort: Halde Anna 1, Alsdorf; Bildbreite: 8 mm

Copyright: Frank de Wit
Contribution: bardenoki 2006-04-26
Locality: Anna / Alsdorf / Aachen, Städteregion / Köln, Bezirk / Nordrhein-Westfalen / Deutschland

Collectors Summary

Color grünlich braun, gelbbraun, orange braun, zitronengelb
Streak color bräunlich gelb
Hardness (Mohs) 2.5
Solubility +++ H2O
Crystal System trigonal, P3

Chemism

Chem­ical formula

K2Na6Fe2+Fe63+(SO4)12O2·18 H2O

Chem­ical com­po­si­tion

Eisen, Natrium, Kalium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 2116.0849732 u; Number of atoms in the formula: 131

Info

Empirical formula:

K2Na6FeFe6(SO4)12O2·18H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.71

36

27.48

1.0079470

36.2860920

Oxygen

O

51.41

68

51.91

15.9994300

1,087.9612400

Sodium

Na

6.52

6

4.58

22.9897702

137.9386212

Sulfur

S

18.18

12

9.16

32.0655000

384.7860000

Potassium

K

3.70

2

1.53

39.0983100

78.1966200

Iron

Fe

18.47

7

5.34

55.8452000

390.9164000

Anal­y­sis wt%

K2O : 4.82, Na2O : 8.89, FeO : 2.83, Fe2O3 : 22.55, SO3 : 44.22, H2O : 17.23 (Ref: Dana, 7th ed. 2)

Strunz 9th edi­tion incl. updates

7.DF.35

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
F: mit großen und mittelgroßen Kationen
35:Metavoltin-Gruppe

Lapis Clas­sifica­tion

VI/D.14-010

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
14: Mittelgroße und sehr große Kationen

Clas­sifica­tion by Hölzel

7.CD.620

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

Dana 8th edi­tion

29.04.06.01

29: Hydrated Acid and Sulfates
04: Hydrated Acid and Sulfates where (A+)2 Bn (XO4)p · x(H2O)

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

grünlich braun, gelbbraun, orange braun, zitronengelb

Streak color

bräunlich gelb

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.015

Birefringence chart\! Metavoltine title=Birefringence chart Metavoltine

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

1.592

RI value γ / ε

1.577

Ri mean

1.587

2V angle

Uniaxial (-)

Optical Data Luminescence

Lumi­nes­cence

fluoreszierend

Color LW-UV (365nm)

 

orange

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3

Space Group number

143

Space Group

P3

Cell param­e­ters a (Å)

9.575

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

18.17

Cell param­e­ters a/b or c/a

1.898

Cell param­e­ters c/b

-

Z

1

Volumne (ų)

1442.657

X-Ray Pow­der Diffrac­tion

18.28(30),
9.12(100),
3.300(40),
3.087(20),
3.065(30),
2.899(30),
2.375(20),
2.002(40)

XRD chart Metavoltine

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)

2.5

2.436 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O

Preface

Author (Name, Year)

Blaas, 1883

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 449

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Carlsonite

(NH4)5Fe3+3O(SO4)6·7H2O

triklin : 1 : P1

7.DF.35

Metavoltine

K2Na6Fe2+Fe63+(SO4)12O2·18 H2O

trigonal : 3 : P3

7.DF.35

Scordariite

K8(Fe3+0.670.33)[Fe3+3O(SO4)6]2·14H2O

trigonal : 3 : R3

7.DF.35

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Metavoltine

K2Na6Fe2+Fe63+(SO4)12O2·18 H2O

trigonal : 3 : P3

VI/D.14-010

Motukoreaite

Mg6Al3(OH)18[Na(H2O)6](SO4)2·6H2O

trigonal : 3m : R3m

VI/D.14-020

'Natroglaucocerinite'

NaZn5Al3[(OH)16|(SO4)2]·6H2O

trigonal : 3 : P3

VI/D.14-021

Nikischerite

NaFe62+Al3[(OH)18|(SO4)2]·12H2O

trigonal : 3 : R3

VI/D.14-022

Shigaite

NaMn62+Al3[(OH)18|(SO4)2]·12H2O

trigonal : 3 : R3

VI/D.14-023

Wermlandite

(Ca,Mg)Mg7(Al,Fe3+)2(SO4)2(OH)18·12H2O

trigonal : 3m : P3c1

VI/D.14-025

Lannonite

HCa4Mg2Al4(SO4)8F9·32H2O

VI/D.14-030

Slavíkite

(H3O)3Mg6Fe15(SO4)21(OH)18·98H2O

trigonal : 3 : R3

VI/D.14-040

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Voltaite

K2Fe2+5Fe3+3Al(SO4)12·18H2O

kubisch : m3m : Fd3c

7.CD.600

Pertlikite

K2(Fe2+,Mg)2(Mg,Fe3+)4Fe3+2Al(SO4)12·18H2O

tetragonal : 4mm : I41cd

7.CD.605

Ammoniomagnesiovoltaite

(NH4)2Mg5Fe3+3Al(SO4)12·18H2O

kubisch : m3m : Fd3c

7.CD.607

Zincovoltaite

K2(Zn,Fe2+,Mn)5Fe33+Al(SO4)12·18H2O

kubisch : m3m : Fd3c

7.CD.610

Metavoltine

K2Na6Fe2+Fe63+(SO4)12O2·18 H2O

trigonal : 3 : P3

7.CD.620

Löweite

Na12Mg7(SO4)13·15H2O

trigonal : 3 : R3

7.CD.640

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Hydroglauberite

Na4Ca(SO4)3·2H2O

29.04.01.01

Eugsterite

Na4Ca(SO4)3·2H2O

29.04.02.01

Löweite

Na12Mg7(SO4)13·15H2O

trigonal : 3 : R3

29.04.03.01

Ferrinatrite

Na3Fe(SO4)3·3H2O

trigonal : 3 : P3

29.04.04.01

Polyhalite

K2Ca2Mg(SO4)4·2H2O

triklin : 1 : F1

29.04.05.01

Leightonite

K2Ca2Cu(SO4)4·2H2O

monoklin : 2/m : C2/c

29.04.05.02

Metavoltine

K2Na6Fe2+Fe63+(SO4)12O2·18 H2O

trigonal : 3 : P3

29.04.06.01

Görgeyite

K2Ca5(SO4)6·H2O

monoklin : 2/m : C2/c

29.04.07.01

Other languages

German

Metavoltin

Spanish

Metavoltina

French

Metavoltine

English

Metavoltine

Russian

Метавольтин

Alternative Name

Mausit

Mausita

Mausite

Metavoltaite

α-Metavoltine

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Metavoltin
Google-Bilder-Suche - search for: Metavoltin
Mineralogisch-Petrographisches-Institut Hamburg - search for: Metavoltin

English pages

Mindat - search for: Metavoltine
Webmineral - search for:Metavoltine
Handbook-of-Mineralogy - search for: Metavoltine
RRUFF - Raman, XRD and other mineral data - search for: Metavoltine
RRUFF - References and PDF downloads - search for: Metavoltine
American-Mineralogist-Crystal-Structure-Database - search for: Metavoltine
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Russian pages

Webmineral.ru - search for: Метавольтин

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Metavoltin
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Locations with GPS information