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Fedotovite (Fedotovit)

Pictures (3 Images total)

Fedotovit
Views (Image: 1271583869): 1278
Fedotovit

Größe: 5 x 4 x 3 mm, Fundort: Große Spalteneruption, Tolbachik Vulkan, Kamchatka Oblast', Russland.
Copyright: Michael Roarke
Contribution: thdun5 2010-04-18
Locality: Große Spalteneruption (Great Fissure) / Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland
Fedotovit
Views (Image: 1081184238): 994
Fedotovit

Smaragdgrünes, extrem seltenes Fedotovit mit hellblauem Boothit und braunem Dolerophanit; Stufengröße: 1,5 x 1,4 cm; Fundort: Tolbachik-Vulkan, Kamtchatka, Sibirien, Russland
Collection: McSchuerf
Copyright: McSchuerf
Contribution: Mineralienatlas 2004-04-05
Locality: Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland
Fedotovit
Views (Image: 1327850088): 698
Fedotovit

grüne Fedotovit-xx mit Boothit/ Chalkanthit auf roter Schlacke. BB 2cm. Fundort: Yadovitaya (Giftige) Fumarole, 2. Aschenkegel, Vulkan Tolbachik, Kamchatka (TL). Mineral wird wegen Wasserempfindlic...
Collection: Yi Sun
Copyright: Yi Sun
Contribution: sun-mineral 2012-01-29
Locality: Tolbachik-Vulkan / Kamtschatka Oblast / Ferner Osten, Föderationskreis / Russland

Collectors Summary

Color smaragdgrün / blaugrün
Streak color hellgrün
Lustre Glasglanz
Hardness (Mohs) 2.5
Solubility +++ HNO3, an der Luft nicht stabil
Crystal System monoklin, C2/c
Morphology massige und krustige Aggregate

Chemism

Chem­ical formula

K2Cu2+3(O|(SO4)3)

Chem­ical com­po­si­tion

Kupfer, Kalium, Sauerstoff, Schwefel

Unit weight: 573.02461 u; Number of atoms in the formula: 21

Info

Empirical formula:

K2Cu3(O(SO4)3)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

36.30

13

61.90

15.9994300

207.9925900
Sulfur

S

16.79

3

14.29

32.0655000

96.1965000
Potassium

K

13.65

2

9.52

39.0983100

78.1966200
Copper

Cu

33.27

3

14.29

63.5463000

190.6389000

Strunz 9th edi­tion incl. updates

7.BC.30

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

Lapis Clas­sifica­tion

VI/B.05-010

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

Clas­sifica­tion by Hölzel

7.BA.220

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

Dana 8th edi­tion

30.03.04.01

30: Anhydrous Sulfates Containing Hydroxyl or Halogen
03: Anhydrous Sulfates Containing Hydroxyl or Halogen with miscellaneous formulae

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

smaragdgrün / blaugrün

Streak color

hellgrün

Lus­tre

Glasglanz

max. Birefrin­gence

0.056
Birefringence chart\! Fedotovite title=Birefringence chart Fedotovite

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

1.577

RI value β

1.594

RI value γ / ε

1.633

Ri mean

1.601

2V angle

Biaxial (+) 68°c

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

19.037

Cell param­e­ters b (Å)

9.479

Cell param­e­ters c (Å)

14.231

Cell param­e­ters a/b or c/a

2.008

Cell param­e­ters c/b

1.501

Cell param­e­ters α

90°

Cell param­e­ters β

111.3

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

2392.591

X-Ray Pow­der Diffrac­tion

8.83(100),
6.59(10),
6.54(10),
4.537(10),
4.405(10),
4.207(10),
2.943(10),
2.844(10)
XRD chart Fedotovite

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

Morphol­ogy

massige und krustige Aggregate

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2.5

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.205 (gemessen)

3.181 ( ρ calc. Mineralienatlas )

Radioac­tiv­ity

nicht bekannt

Insta­bil­ity

+++ HNO3, an der Luft nicht stabil

Chem­ical Prop­er­ties and Tests

chemisch und durch Röntgenanalyse

(Co-)Type locality

(Co-)Type locality

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

Preface

Occurrences

als Sublimationsprodukt aus Fumarolen in Vulkangebieten; in der Oxidationszone; Fundorte: Tolbachik-Vulkan, Kamtchatka, Sibirien, Russland

Asso­cia­tions

Boothit (hellblau) und Dolerophanit (braun)

Rare­ness

sehr selten

Author (Name, Year)

Vergasova & Filatov & Serafimova & Starova, 1988

Rel­evance, Usage

nur zu Sammlerzwecken

Col­lector informa­tion

schwer erhältliches Sammlermineral

Addi­tional Informa­tion

unbeständig an feuchter Luft

References

Doklady Akademiia Nauk, SSSR (USSR) (in Russian) 299 (1988), 961

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

Puninite

Na2Cu3O(SO4)3

monoklin : 2/m : C2/c

7.BC.30

Euchlorine

KNaCu32+(SO4)3O

monoklin : 2/m : C2/c

7.BC.30

Fedotovite

K2Cu2+3(O|(SO4)3)

monoklin : 2/m : C2/c

7.BC.30

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]

Euchlorine

KNaCu32+(SO4)3O

monoklin : 2/m : C2/c

 30.03.01.01

Caracolite

Na3(Pb2Na)(SO4)3Cl

monoklin : 2/m : P21/m

 30.03.02.01

Cesanite

Na7Ca3(SO4)6(OH)·H2O

hexagonal : 3m : P6

 30.03.03.01

Fedotovite

K2Cu2+3(O|(SO4)3)

monoklin : 2/m : C2/c

 30.03.04.01

Other languages

German

Fedotovit

Spanish

Fedotovita

English

Fedotovite

French

Fedotovite

Russian

Федотовит

IMA Number

IMA 1986-013

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

German pages

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

English pages

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

Russian pages

 Webmineral.ru - search for: Федотовит

Mineral Dealer

German pages

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

Locations with GPS information