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Klyuchevskite

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Klyuchevskit (olivgrün)
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Klyuchevskit (olivgrün)

auf Melanothallit (schwarzgrün) und Euchlorin (smaragdgrün); Kristallgröße: 2 mm; Fundort: zweiter Schlackenkegel, nördlicher Bruch, Große Spalteneruption, Tolbachik Vulkan, Kamchatka Oblast', Russ...
Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-01
Locality: zweiter Schlackenkegel / nördlicher Bruch / Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland

Collectors Summary

Color schmutziggrün
Streak color grünlich
Hardness (Mohs) 3.00 - 4.00
Solubility +++ H2O, Säuren, hydratisiert an der Luft
Crystal System monoklin, I2

Chemism

Chem­ical formula

K3Cu3(Fe3+,Al)O2(SO4)4

Chem­ical com­po­si­tion

Aluminium, Eisen, Kupfer, Kalium, Sauerstoff, Schwefel

Unit weight: 772.81485455 u; Number of atoms in the formula: 29

Info

Empirical formula:

K3Cu3(Fe0.75Al0.25)O2(SO4)4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

37.27

18

62.07

15.9994300

287.9897400
Aluminium

Al

0.87

0.25

0.86

26.9815382

6.7453846
Sulfur

S

16.60

4

13.79

32.0655000

128.2620000
Potassium

K

15.18

3

10.34

39.0983100

117.2949300
Iron

Fe

5.42

0.75

2.59

55.8452000

41.8839000
Copper

Cu

24.67

3

10.34

63.5463000

190.6389000

Anal­y­sis wt%

K2O : 18.17, PbO : 0.71, CuO : 31.15, Fe2O3 : 7.86, Al2O3 : 1.38, SO3 : 40.98 (Ref: Mineralogical Magazine 92)

Strunz 9th edi­tion incl. updates

7.BC.45

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

Lapis Clas­sifica­tion

VI/B.05-050

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
B: Wasserfreie Sulfate, mit fremden Anionen
5: Mittelgroße Kationen vorwiegend

Clas­sifica­tion by Hölzel

7.BA.210

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
B: Sulfates (+Anions -Water)
A: Sulfates, C medium, medium + large
2: With Na,K + Cu

Dana 8th edi­tion

28.04.06.01

28: Sulfate Minerals
04: Anhydrous Acid and Sulfates with miscellaneous formulae
06: Klyuchevskite Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

schmutziggrün

Streak color

grünlich

max. Birefrin­gence

0.131
Birefringence chart\! Klyuchevskite title=Birefringence chart Klyuchevskite

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

1.549

RI value β

1.550

RI value γ / ε

1.680

Ri mean

1.593

2V angle

Biaxial (+) 11°c

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2

Space Group number

5

Space Group

I2

Cell param­e­ters a (Å)

18.667

Cell param­e­ters b (Å)

4.94

Cell param­e­ters c (Å)

18.405

Cell param­e­ters a/b or c/a

3.779

Cell param­e­ters c/b

3.726

Cell param­e­ters α

90°

Cell param­e­ters β

101.50

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1663.145

X-Ray Pow­der Diffrac­tion

9.17(90),
9.03(100),
7.20(30),
4.502(20),
3.762(50),
3.678(20),
3.409(30),
2.780(10)
XRD chart Klyuchevskite

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)

3.00 - 4.00

VHN (Hard­ness Vick­ers)

177 (3g)

Density (g/cm³)

3.08 (gemessen)

3.086 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O, Säuren, hydratisiert an der Luft

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Kamtschatka Oblast/Tolbachik-Vulkan/Große Spalteneruption (Great Fissure)

Preface

Asso­cia­tions

Euchlorin, Lammerit, Langbeinit, Melanothallit

Author (Name, Year)

Vergasova & Filatov & Gorskaya & Anan'ev & Sharov, 1989

Addi­tional Informa­tion

hydratisiert an feuchter Luft innerhalb einer Woche

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 118 (1) (1989), 70

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

Eleomelanite

(K2Pb)Cu4O2(SO4)4

monoklin : 2/m : P21/n

7.BC.45

Klyuchevskite

K3Cu3(Fe3+,Al)O2(SO4)4

monoklin : 2 : I2

7.BC.45

Alumoklyuchevskite

K3Cu3(Al,Fe3+)O2(SO4)4

monoklin : 2 : I2

7.BC.45

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

Fedotovite

K2Cu2+3(O|(SO4)3)

monoklin : 2/m : C2/c

VI/B.05-010

Chlorothionite

K2Cu(SO4)Cl2

orthorhombisch : mmm : Pnma

VI/B.05-020

Kamchatkite

KCu32+OCl(SO4)2

orthorhombisch : mm2 : Pna21

VI/B.05-030

Piypite

K4Cu4O2(SO4)4·(Na,Cu)Cl

tetragonal : 4 : I4

VI/B.05-040

Alumoklyuchevskite

K3Cu3(Al,Fe3+)O2(SO4)4

monoklin : 2 : I2

VI/B.05-045

Klyuchevskite

K3Cu3(Fe3+,Al)O2(SO4)4

monoklin : 2 : I2

VI/B.05-050

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

Piypite

K4Cu4O2(SO4)4·(Na,Cu)Cl

tetragonal : 4 : I4

7.BA.200

Klyuchevskite

K3Cu3(Fe3+,Al)O2(SO4)4

monoklin : 2 : I2

7.BA.210

Alumoklyuchevskite

K3Cu3(Al,Fe3+)O2(SO4)4

monoklin : 2 : I2

7.BA.215

Adranosite-(Al)

(NH4)4NaAl2(SO4)4Cl(OH)2

tetragonal : 4/mmm : I41/acd

7.BA.217

Fedotovite

K2Cu2+3(O|(SO4)3)

monoklin : 2/m : C2/c

7.BA.220

Euchlorine

KNaCu32+(SO4)3O

monoklin : 2/m : C2/c

7.BA.230

Chlorothionite

K2Cu(SO4)Cl2

orthorhombisch : mmm : Pnma

7.BA.250

Kamchatkite

KCu32+OCl(SO4)2

orthorhombisch : mm2 : Pna21

7.BA.260

Atlasovite

KCu62+Fe3+Bi3+[O4|Cl|(SO4)5]

tetragonal : 4/mmm : P4/ncc

7.BA.280

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

Vanthoffite

Na6Mg(SO4)4

monoklin : 2/m : P21/c

 28.04.01.01

Glauberite

Na2Ca(SO4)2

monoklin : 2/m : C2/c

 28.04.02.01

Palmierite

(K,Na)2Pb(SO4)2

trigonal : 3m : R3m

 28.04.03.01

Kalistrontite

K2Sr(SO4)2

trigonal : 3m : R3m

 28.04.03.02

Langbeinite

K2Mg2(SO4)3

kubisch : 23 : P213

 28.04.04.01

Manganolangbeinite

K2Mn2(SO4)3

kubisch : 23 : P213

 28.04.04.02

Efremovite

(NH4)2Mg2(SO4)3

kubisch : 23 : P213

 28.04.04.03

Millosevichite

(Al,Fe3+)2(SO4)3

trigonal : 3 : R3

 28.04.05.01

Mikasaite

(Fe3+,Al)[SO4]3

trigonal : 3 : R3

 28.04.05.02

Klyuchevskite

K3Cu3(Fe3+,Al)O2(SO4)4

monoklin : 2 : I2

 28.04.06.01

Alumoklyuchevskite

K3Cu3(Al,Fe3+)O2(SO4)4

monoklin : 2 : I2

 28.04.06.02

Other languages

German

Klyuchevskit

Spanish

Klyuchevskita

French

Klyuchevskite

English

Klyuchevskite

Russian

Ключевскит

Japanese

ｸﾗｲｼｪﾌﾞｽｸ鉱

IMA Number

IMA 1987-027

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

German pages

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Russian pages

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