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Ammoniomagnesiovoltaite

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Ammoniomagnesiovoltait
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Ammoniomagnesiovoltait

gelbe, kugelige Aggregate von Ammoniomagnesiovoltait, Pécs-Vasas, Pécs, Mecsek Mountains, Baranya County, Ungarn; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-04-15
Locality: Pécs-Vasas / Pécs / Pécs, Kreis / Baranya, Komitat / Ungarn

Collectors Summary

Color blassgelb bis gelblichbraun
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 2 - 3
Cleavages keine
Crystal System kubisch, Fd3c

Chemism

Chem­ical formula

(NH4)2Mg5Fe3+3Al(SO4)12·18H2O

Addi­tional chem. informa­tion

NH4+-Mg2+ Analog von Voltait

Chem­ical com­po­si­tion

Aluminium, Eisen, Magnesium, Sauerstoff, Schwefel, Stickstoff, Wasserstoff

Unit weight: 1829.1539262 u; Number of atoms in the formula: 133

Info

Empirical formula:

(NH4)2Mg5Fe3Al(SO4)12·18H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.42

44

33.08

1.0079470

44.3496680
Nitrogen

N

1.53

2

1.50

14.0067200

28.0134400
Oxygen

O

57.73

66

49.62

15.9994300

1,055.9623800
Magnesium

Mg

6.64

5

3.76

24.3050600

121.5253000
Aluminium

Al

1.48

1

0.75

26.9815382

26.9815382
Sulfur

S

21.04

12

9.02

32.0655000

384.7860000
Iron

Fe

9.16

3

2.26

55.8452000

167.5356000

Strunz 9th edi­tion incl. updates

7.CC.25

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

Lapis Clas­sifica­tion

VI/C.14-070

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

Clas­sifica­tion by Hölzel

7.CD.607

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

IMA sta­tus

anerkannt - Neue Mineralien - IMA Web-Seite Sept. 2009

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Voltaite group

Optical Properties

Color

blassgelb bis gelblichbraun

Streak color

weiß

Lus­tre

Glasglanz

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

228

Space Group

Fd3c

Cell param­e­ters a (Å)

27.351

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

16

Volumne (ų)

20460.66

X-Ray Pow­der Diffrac­tion

6.85(24), 5.59(100), 3.562(66), 3.420(72), 3.059(22), 2.197(22), 1.784(25), 1.558(25)
XRD chart Ammoniomagnesiovoltaite

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

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2 - 3

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.35

2.375 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

(Co-)Type locality

(Co-)Type locality

Ungarn/Baranya, Komitat/Pécs, Kreis/Pécs/Pécs-Vasas

Preface

Occurrences

brennende Kohlehalde

Asso­cia­tions

Tschermigit, Sabieit, Kieserit, Pickeringit, Hexahydrit

Author (Name, Year)

Sándor Szakáll, 2009

References

Neue Mineralien - IMA Web-Seite Sept. 2009

Neue Mineralien, Lapis Jg. 37, Sept. 2012, Nr. 9, S. 46

IMA group assignments

 
Voltaite group
 
 
 

 
 
Ammoniomagnesiovoltaite
(NH4)2Mg5Fe3+3Al(SO4)12·18H2O
kubisch
Fd3c

 
 
Ammoniovoltaite
(NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18
kubisch
Fd3c

 
 
Magnesiovoltaite
K2Mg5Fe3+3Al(SO4)12·18H2O
kubisch
Fd3c

 
 
Pertlikite
K2(Fe2+,Mg)2(Mg,Fe3+)4Fe3+2Al(SO4)12·18H2O
tetragonal
I41cd

 
 
Voltaite
K2Fe2+5Fe3+3Al(SO4)12·18H2O
kubisch
Fd3c

 
 
Zincovoltaite
K2(Zn,Fe2+,Mn)5Fe33+Al(SO4)12·18H2O
kubisch
Fd3c

Refresh list

Actuality: 02. Mar 2021 - 16:33:30

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

Voltaite

K2Fe2+5Fe3+3Al(SO4)12·18H2O

kubisch : m3m : Fd3c

7.CC.25

Pertlikite

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

tetragonal : 4mm : I41cd

7.CC.25

Ammoniomagnesiovoltaite

(NH4)2Mg5Fe3+3Al(SO4)12·18H2O

kubisch : m3m : Fd3c

7.CC.25

Zincovoltaite

K2(Zn,Fe2+,Mn)5Fe33+Al(SO4)12·18H2O

kubisch : m3m : Fd3c

7.CC.25

Ammoniovoltaite

(NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18

kubisch : m3m : Fd3c

7.CC.25

Magnesiovoltaite

K2Mg5Fe3+3Al(SO4)12·18H2O

kubisch : m3m : Fd3c

7.CC.25

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

Alum-(Na)

NaAl(SO4)2·12H2O

kubisch : m3 : Pa3

VI/C.14-010

Alum-(K)

KAl(SO4)2·12H2O

kubisch : m3 : Pa3

VI/C.14-020

Tschermigite

(NH4)Al(SO4)2·12H2O

kubisch : m3 : Pa3

VI/C.14-030

Lonecreekite

(NH4)(Fe3+,Al)(SO4)2·12H2O

kubisch : m3 : Pa3

VI/C.14-040

Lanmuchangite

TlAl[SO4]2·12H2O

kubisch : m3 : Pa3

VI/C.14-045

Pertlikite

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

tetragonal : 4mm : I41cd

VI/C.14-048

Voltaite

K2Fe2+5Fe3+3Al(SO4)12·18H2O

kubisch : m3m : Fd3c

VI/C.14-050

Zincovoltaite

K2(Zn,Fe2+,Mn)5Fe33+Al(SO4)12·18H2O

kubisch : m3m : Fd3c

VI/C.14-060

Ammoniomagnesiovoltaite

(NH4)2Mg5Fe3+3Al(SO4)12·18H2O

kubisch : m3m : Fd3c

VI/C.14-070

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

Other languages

German

Ammoniomagnesiovoltait

English

Ammoniomagnesiovoltaite

Russian

Аммониомагнезиовольтаит

IMA Number

IMA 2009-040

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

German pages

 DeWikiPedia - search for: Ammoniomagnesiovoltait
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Mineralogisch-Petrographisches-Institut Hamburg - search for: Ammoniomagnesiovoltait

English pages

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American-Mineralogist-Crystal-Structure-Database - search for: Ammoniomagnesiovoltaite
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Russian pages

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German pages

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Locations with GPS information