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Ammoniomagnesiovoltaite

Pictures (1 Images total)

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
Location: Ungarn/Baranya, Komitat/Pécs, Kreis/Pécs/Pécs-Vasas
Mineral: Ammoniomagnesiovoltaite
Image: 1586981636
License: Usage for Mineralienatlas project only
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

Volume (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)

S. Szakáll, I. Sajó, B. Fehér, and S. Bigi (2012)

References

Neue Mineralien - IMA Web-Seite Sept. 2009

S. Szakáll, I. Sajó, B. Fehér, and S. Bigi: Ammoniomagnesiovoltaite, a new voltaite-related mineral species from Pécs-Vasas, Hungary. Canadian Mineralogist Vol. 50, Nr. 1 (2012) S. 65–72.

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

Fernando Cámara, G. Diego Gatta, Yulia Uvarova, Olivier C. Gagne, and Dmitriy I. Belakovskiy: New Mineral Names. American Mineralogist Vol. 99, Nr. 10 (2014) S. 2150-2158.

IMA group assignments

Other languages

German

Ammoniomagnesiovoltait

English

Ammoniomagnesiovoltaite

Russian

Аммониомагнезиовольтаит

CNMNC (IMA)-Number

IMA 2009-040

CNMNC symbol

Symbol

Amvlt

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 2Fd8eQVXb0Ok2CnazdH8gw
GUID (Global unique identifier) 797C57D8-5705-436F-A4D8-29DACDD1FC83
Database ID 5267