Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Fedotovite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
© Michael C. Roarke

Show Fedotovite Photos (4)



Formula:
K
 
2
Cu
 
3
(SO
 
4
)
 
3
O
System:MonoclinicColour:Emerald green to grass ...
Hardness:2½
Name:After Sergei Aleksandrovich Fedotov (1931– ), volcanologist and seismologist, Director of the Institute of Volcanology, Petropavlovsk-Kamchatkskii, Russia.
This page provides mineralogical data about Fedotovite.

Classification of Fedotovite

IMA status:Approved 1986
Strunz 8th edition ID:6/B.05-10
Nickel-Strunz 10th (pending) edition ID:7.BC.30

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
C : With medium-sized and large cations
Dana 8th edition ID:30.3.4.1

30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
3 : (AB)5(XO4)3Zq
Hey's CIM Ref.:25.2.14

25 : Sulphates
2 : Sulphates of Cu and Ag
mindat.org URL:http://www.mindat.org/min-1469.html
Please feel free to link to this page.

Type Occurrence of Fedotovite

Type Locality:Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
Year of Discovery:1988

Occurrences of Fedotovite

Geological Setting:Sublimates around fumaroles.

Physical Properties of Fedotovite

Lustre:Vitreous, Silky
Diaphaneity (Transparency):Transparent
Colour:Emerald green to grass green
Streak:Pale grass green
Hardness (Mohs):2½
Cleavage:Perfect
on {100}
Density (measured):3.205(3) g/cm3
Density (calculated):3.09 g/cm3

Crystallography of Fedotovite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/b {B1 1 2/b} {C2/c} {C1 2/c 1}
Cell Parameters:a = 19.037(6) Å, b = 9.479(2) Å, c = 14.231(5) Å
β = 111.04°
Ratio:a:b:c = 2.008 : 1 : 1.501
Unit Cell Volume:V 2,396.80 ų (Calculated from Unit Cell)
Z:8
Morphology:Crusts of pseudohexagonal flakes.

Optical Data of Fedotovite

Type:Biaxial (+)
RI values: nα = 1.577 nβ = 1.594 nγ = 1.633
2V:Measured: 68° , Calculated: 70°
Maximum Birefringence:δ = 0.056

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:very weak
Pleochroism:Visible
Comments:X= greenish blue
Y=Z= yellow green

Chemical Properties of Fedotovite

Formula:
K
 
2
Cu
 
3
(SO
 
4
)
 
3
O
Essential elements:Cu, K, O, S
All elements listed in formula:Cu, K, O, S

Relationship of Fedotovite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.BC.05D'Ansite
Na
 
21
Mg(SO
 
4
)
 
10
Cl
 
3
7.BC.10Alunite
KAl
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Ammonioalunite
(NH
 
4
)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Ammoniojarosite
(NH
 
4
)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Argentojarosite
AgFe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Beaverite-(Cu)
Pb(Fe
3+
 
,Cu)
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Dorallcharite
(Tl,K)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Huangite
Ca
 
0.5
Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Hydroniumjarosite
(H
 
3
O)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Jarosite
KFe
3+
 
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Minamiite
(Na,Ca
 
0.5
,K)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Natroalunite
(Na,K)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Natrojarosite
NaFe
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Osarizawaite
Pb(Al,Cu)
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Plumbojarosite
Pb
 
0.5
Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Schlossmacherite
(H
 
3
O,Ca)Al
 
3
(SO
 
4
,AsO
 
4
)
 
2
(OH)
 
6
7.BC.10Walthierite
Ba
 
0.5
Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.15Ye'elimite
Ca
 
4
Al
 
6
(SO
 
4
)O
 
12
7.BC.20Atlasovite
K(BiO)Cu
 
6
Fe
3+
 
(SO
 
4
)
 
5
O
 
3
Cl
7.BC.20Nabokoite
KCu
 
7
(SO
 
4
)
 
5
(Te
4+
 
O
 
3
)OCl
7.BC.25Chlorothionite
K
 
2
Cu(SO
 
4
)Cl
 
2
7.BC.30Euchlorine
KNaCu
 
3
(SO
 
4
)
 
3
O
7.BC.35Kamchatkite
KCu
 
3
(SO
 
4
)
 
2
OCl
7.BC.40Piypite
K
 
2
Cu
 
2
(SO
 
4
)
 
2
O
7.BC.45Klyuchevskite
K
 
3
Cu
 
3
(Fe
3+
 
,Al)(SO
 
4
)
 
4
O
 
2
7.BC.45Alumoklyuchevskite
K
 
3
Cu
 
3
(Al,Fe
3+
 
)(SO
 
4
)
 
4
O
 
2
7.BC.50Caledonite
Cu
 
2
Pb
 
5
(SO
 
4
)
 
3
(CO
 
3
)(OH)
 
6
7.BC.55Wherryite
Pb
 
7
Cu
 
2
(SO
 
4
)
 
4
(SiO
 
4
)
 
2
(OH)
 
2
7.BC.60Mammothite
Pb
 
6
Cu
 
4
AlSb(SO
 
4
)
 
2
(OH)
 
18
Cl
 
4
7.BC.65Linarite
PbCu(SO
 
4
)(OH)
 
2
7.BC.65Schmiederite
Pb
 
2
Cu
 
2
(Se
6+
 
O
 
4
)(Se
4+
 
O
 
3
)(OH)
 
4
7.BC.65Munakataite
Pb
 
2
Cu
 
2
(Se
4+
 
O
 
3
)(SO
 
4
)(OH)
 
4
7.BC.70Chenite
Pb
 
4
Cu(SO
 
4
)
 
2
(OH)
 
6
7.BC.75Krivovichevite
Pb
 
3
Al(SO
 
4
)(OH)
 
7
7.BC.80Anhydrokainite
KMg(SO
 
4
)Cl
Related Minerals - Hey's Index Grouping:

- +
25.2.1Chalcocyanite
CuSO
 
4
25.2.2Bonattite
CuSO
 
4
 · 3H
 
2
O
25.2.3Chalcanthite
CuSO
 
4
 · 5H
 
2
O
25.2.4Boothite
CuSO
 
4
 · 7H
 
2
O
25.2.5Dolerophanite
Cu
 
2
(SO
 
4
)O
25.2.6Antlerite
Cu
 
3
(SO
 
4
)(OH)
 
4
25.2.7Brochantite
Cu
 
4
(SO
 
4
)(OH)
 
6
25.2.8Posnjakite
Cu
 
4
(SO
 
4
)(OH)
 
6
 · H
 
2
O
25.2.9Langite
Cu
 
4
(SO
 
4
)(OH)
 
6
 · 2H
 
2
O
25.2.10Wroewolfeite
Cu
 
4
(SO
 
4
)(OH)
 
6
 · 2H
 
2
O
25.2.11Kröhnkite
Na
 
2
Cu(SO
 
4
)
 
2
 · 2H
 
2
O
25.2.12Natrochalcite
NaCu
 
2
(SO
 
4
)
 
2
(OH) · 2H
 
2
O
25.2.13Piypite
K
 
2
Cu
 
2
(SO
 
4
)
 
2
O
25.2.15Cyanochroite
K
 
2
Cu(SO
 
4
)
 
2
 · 6H
 
2
O
25.2.16Euchlorine
KNaCu
 
3
(SO
 
4
)
 
3
O
25.2.17Devilline
CaCu
 
4
(SO
 
4
)
 
2
(OH)
 
6
 · 3H
 
2
O
25.2.18Leightonite
K
 
2
Ca
 
2
Cu(SO
 
4
)
 
4
 · 2H
 
2
O
25.2.19Chalcoalumite
CuAl
 
4
(SO
 
4
)(OH)
 
12
 · 3H
 
2
O
25.2.20Cyanotrichite
Cu
 
4
Al
 
2
(SO
 
4
)(OH)
 
12
 · 2H
 
2
O
25.2.21Woodwardite
Cu
 
4
Al
 
2
(SO
 
4
)(OH)
 
12
 · 2-4H
 
2
O
25.2.22Campigliaite
Mn
2+
 
Cu
 
4
(SO
 
4
)
 
2
(OH)
 
6
 · 4H
 
2
O
25.2.23Guildite
CuFe
3+
 
(SO
 
4
)
 
2
(OH) · 4H
 
2
O
25.2.24Ransomite
CuFe
 
2
(SO
 
4
)
 
4
 · 6H
 
2
O
25.2.26Klyuchevskite
K
 
3
Cu
 
3
(Fe
3+
 
,Al)(SO
 
4
)
 
4
O
 
2
25.2.27Poitevinite
(Cu,Fe,Zn)SO
 
4
 · H
 
2
O
25.2.28Argentojarosite
AgFe
3+
3
(SO
 
4
)
 
2
(OH)
 
6

Other Names for Fedotovite

Synonyms:
IMA1986-013
Other Languages:
German:Fedotovit
Russian:Федотовит
Spanish:Fedotovita

Other Information

Special Storage/
Display Requirements:		Unstable in air.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Fedotovite

Reference List:

- +
American Mineralogist: 75: 240-241.

Doklady Akademii Nauk SSSR: 299(4): 961-964.

Transactions of the USSR Academy of Sciences, Earth Science Sections: 299: 196-199.

Mineralogical Magazine: 55: 613-616.

Internet Links for Fedotovite

Search Engines:
  • Look for Fedotovite on Google
  • Look for Fedotovite images on Google
    • External Links:
  • Look for Fedotovite on Webmineral
  • Look for Fedotovite on Athena Mineralogy
  • Look for Fedotovite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Fedotovite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Search for minerals at Heliodor
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Search for - Fedotovite - on e-Rocks Mineral Sales & Auctions
  • Buy from David K Joyce minerals
  • Find Fedotovite on www.crystalclassics.co.uk
  • Edwards Minerals - Fine Specimens
  • Pricedownminerals.com - Reverse Auctions and Shop
  • Wilensky Fine Minerals
  • Fine Minerals from Weinrich Minerals, Inc.
  • Top quality minerals from Kristalle of California
  • Rare and Unusual minerals at Mineralogical Research Company
  • Buy fine minerals and gemstones from Pala International
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Fedotovite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
        • Tolbachik volcano
    		DAN-SSSR,(1988) 229, 961-964; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
            • Northern Breakthrough (North Breach)
              • Second scoria cone
    USA
     
    • Nevada
      • Churchill Co.
        • Table Mountain District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 17th Sep 2011 16:52:14
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds