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Krivovichevite

Additional Functions

Collectors Summary

Color farblos-blassgrau
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 3
Cleavages keine
Fracture muschelig
Solubility +++ H2O, Alkohol, Aceton, Benzin und Schwerflüssigkeiten
Crystal System trigonal, R3c
Morphology Das Mineral bildet bis zu 1cm große, isometrische Körner in pseudomorph umgewandelten Galenit-Aggregaten im Natrolith.

Chemism

Chem­ical formula

Pb3[Al(OH)6](SO4)(OH)

Chem­ical com­po­si­tion

Aluminium, Blei, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 863.7263972 u; Number of atoms in the formula: 23

Info

Empirical formula:

Pb3[Al(OH)6](SO4)(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.82

7

30.43

1.0079470

7.0556290

Oxygen

O

20.38

11

47.83

15.9994300

175.9937300

Aluminium

Al

3.12

1

4.35

26.9815382

26.9815382

Sulfur

S

3.71

1

4.35

32.0655000

32.0655000

Lead

Pb

71.97

3

13.04

207.2100000

621.6300000

Anal­y­sis wt%

SO3 : 9.27, Al2O3 : 5.38, PbO : 76.49, H2O : 7.20 (Ref: Canadian Mineralogist 2007)

Strunz 9th edi­tion incl. updates

7.BC.75

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

Lapis Clas­sifica­tion

VI/B.11-130

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
B: Wasserfreie Sulfate, mit fremden Anionen
11: Große Kationen vor-wiegend; Alunit-Gruppe

Clas­sifica­tion by Hölzel

7.BB.700

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
B: Sulfates (+Anions -Water)
B: Alunite-Group (sulfatian)
7: Related to Alunites

IMA sta­tus

anerkannt 2004

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos-blassgrau

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent

Lus­tre

Glasglanz

RI value α / ω / n

1.85

Ri mean

1.85

2V angle

Uniaxial

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3m

Space Group number

161

Space Group

R3c

Cell param­e­ters a (Å)

7.693

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

31.57

Cell param­e­ters a/b or c/a

4.104

Cell param­e­ters c/b

-

Z

6

Volumne (ų)

1618.068

X-Ray Pow­der Diffrac­tion

3.58(10), 3.10(6), 2.591(9), 2.216(5), 2.048(7), 1.893(5), 1.859(4), 1.704(8)

XRD chart Krivovichevite

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

Morphol­ogy

Das Mineral bildet bis zu 1cm große, isometrische Körner in pseudomorph umgewandelten Galenit-Aggregaten im Natrolith.

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3

VHN (Hard­ness Vick­ers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.37 berechnet

5.318 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Frac­ture

muschelig

Tenac­ity

spröde

Insta­bil­ity

+++ H2O, Alkohol, Aceton, Benzin und Schwerflüssigkeiten

Chem­ical Prop­er­ties and Tests

leicht löslich in Wasser, Benzin, Alkohol und Azeton

Preface

Gen­er­a­tion con­di­tions

Das Mineral entstand unter spät- bzw. niedrigthermalen Bedingungen durch Umwandlung aus Galenit und Natrolith.

Asso­cia­tions

Anatas, Arsenopyrit, Fluorapatit, Fluorit, Halloysit, Heulandit-Ca, Heulandit-Sr, Kupletskit, Lamprophyllit, Leucophanit, Magnesio-Arfvedsonit, Mangan-Neptunit, Mikroklin, Monazit-(La), Polylithionit, Quarz, Opal, Rhabdophan-(Ce), Titanit

Name from

Sergey V. Krivovichev (Mineraloge und Kristallograph, Professor an der Universität St. Petersburg, Russland)

References

Mineralien Welt 05/08, Steffen Jahn, Die neuen Mineralien 2007 - 2008

Canadian Mineralogist 45 (2007), 451

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

Krivovichevite

Pb3[Al(OH)6](SO4)(OH)

trigonal : 3m : R3c

7.BC.75

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

Natroalunite-1c

Na2Al3(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-010

Alunite

KAl3(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-020

Ammonioalunite

NH4Al3(SO4)2(OH)6

trigonal : 3m, 3m : R3m, R3m

VI/B.11-030

Huangite

Ca0.5Al3[(OH)6|(SO4)2]

trigonal : 3m : R3m

VI/B.11-043

Walthierite

Ba0.5Al3(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-045

Natrojarosite

NaFe3+3(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-050

Jarosite

KFe3+3(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-060

Dorallcharite

(Tl,K)Fe3+3[(OH)6|(SO4)2]

trigonal : 3m : R3m

VI/B.11-065

Ammoniojarosite

NH4Fe3+3(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-070

Hydronium jarosite

(H3O)Fe3+3(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-080

Argentojarosite

AgFe3+3(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-090

Plumbojarosite

PbFe63+(SO4)4(OH)12

trigonal : 3m : R3m

VI/B.11-100

Osarizawaite

Pb(Al2Cu2+)(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-110

Beaverite-(Zn)

Pb(Fe3+2Zn)(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-115

Beaverite-(Cu)

Pb(Fe3+2Cu)(SO4)2(OH)6

trigonal : 3m : R3m

VI/B.11-120

Krivovichevite

Pb3[Al(OH)6](SO4)(OH)

trigonal : 3m : R3c

VI/B.11-130

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

Krivovichevite

Pb3[Al(OH)6](SO4)(OH)

trigonal : 3m : R3c

7.BB.700

Other languages

German

Krivovichevit

English

Krivovichevite

Russian

Кривовичевит

Simplified Chinese

羟铝铅矾

IMA Number

IMA 2004-053

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

German pages

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

English pages

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RRUFF - References and PDF downloads - search for: Krivovichevite
American-Mineralogist-Crystal-Structure-Database - search for: Krivovichevite
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Russian pages

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