'._('einklappen').'
 

Pertlikite

Pictures (1 Images total)

Pertlikit
Views (Image: 1288201578): 1129
Pertlikit

Bildbreite: 3,1 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

Collectors Summary

Color olivgrün bis schwarz
Streak color graugrün
Lustre Harzglanz (auf Kristallflächen Glasglanz)
Hardness (Mohs) 3
Cleavages keine
Fracture muschelig
Solubility +++ H2O
Crystal System tetragonal, I41cd
Morphology Das Mineral bildet idiomorphe Kristalle mit {111}, {100} und {211} sowie Fünflinge nach {101}, die eine Größe bis 1 cm aufweisen.

Chemism

Chem­ical formula

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

Addi­tional chem. informa­tion

Voltait Gruppe

Chem­ical com­po­si­tion

Aluminium, Eisen, Magnesium, Kalium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 1918.5837402 u; Number of atoms in the formula: 125

Info

Empirical formula:

K2(Fe0.75Mg0.25)2(Mg0.75Fe0.25)4Fe2Al(SO4)12·18H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.89

36

28.80

1.0079470

36.2860920

Oxygen

O

55.04

66

52.80

15.9994300

1,055.9623800

Magnesium

Mg

4.43

3.5

2.80

24.3050600

85.0677100

Aluminium

Al

1.41

1

0.80

26.9815382

26.9815382

Sulfur

S

20.06

12

9.60

32.0655000

384.7860000

Potassium

K

4.08

2

1.60

39.0983100

78.1966200

Iron

Fe

13.10

4.5

3.60

55.8452000

251.3034000

Anal­y­sis wt%

SO3 : 49.58, Al2O3 : 2.64, Fe2O3 : 14.78, FeO : 4.20, MgO : 6.26, MnO : 0.97, K2O : 4.80, H2O : 16.72 (Ref: Canadian Mineralogist 2008)

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.14-048

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

Clas­sifica­tion by Hölzel

7.CD.605

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

IMA sta­tus

anerkannt 2005

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Voltaite group

Optical Properties

Color

olivgrün bis schwarz

Streak color

graugrün

Diaphane­ity (Trans­parency)

durchscheinend

Lus­tre

Harzglanz (auf Kristallflächen Glasglanz)

max. Birefrin­gence

0.004

Birefringence chart\! Pertlikite title=Birefringence chart Pertlikite

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

1.590

RI value γ / ε

1.586

Ri mean

1.589

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4mm

Space Group number

110

Space Group

I41cd

Cell param­e­ters a (Å)

19.208

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

27.216

Cell param­e­ters a/b or c/a

1.417

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

10041.269

X-Ray Pow­der Diffrac­tion

5.543(28), 3.396(100), 3.136(21), 3.038(39), 2.848(31), 2.534(21), 2.078(29), 1.601(21)

XRD chart Pertlikite

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

Morphol­ogy

Das Mineral bildet idiomorphe Kristalle mit {111}, {100} und {211} sowie Fünflinge nach {101}, die eine Größe bis 1 cm aufweisen.

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3

Density (g/cm³)

2.59 gem.

2.538 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Frac­ture

muschelig

Insta­bil­ity

+++ H2O

(Co-)Type locality

(Co-)Type locality

Iran/Hormozgan, Provinz/Bandar Abbas, Bezirk/Haji Abad/Zagh Mine (Madeni Zakh)

Par­a­ge­n­e­sis of type mate­r­ial

Metavoltin, Botryogen, Pyrit, Alunit

Preface

Name from

Professor für Mineralogie und Kristallographie Franz Pertlik Universität Wien, Österreich

Author (Name, Year)

Andreas Ertl, M. Darby Dyar, John M. Hughes, Franz Brandstätter, Mickey E. Gunter, Markus Prem und Ronald C. Peterson; 2008

References

Mineralien Welt 05/09, Steffen Jahn, Neue Mineralien

IMA group assignments

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

Pertlikit

English

Pertlikite

Russian

Пертликит

IMA Number

IMA 2005-055

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Пертликит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Pertlikit
Crystal-Treasure.com - search for: Pertlikit
Bosse - search for: Pertlikit

Locations with GPS information