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Srebrodolskite

Formula:
Ca
 
2
Fe
 
2
O
 
5
System:OrthorhombicColour:Black
Hardness:
Name:Named after Boris Ivanovich Srebrodolsky (b. 1927), mineralogist, Institute of Geology and Geochemistry, Lvov (Ukraine).
This page provides mineralogical data about Srebrodolskite.

Classification of Srebrodolskite

IMA status:Approved 1984
Strunz 8th edition ID:4/A.07-20
Nickel-Strunz 10th (pending) edition ID:4.AC.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
C : M:O = 1:1 (and up to 1:1.25); with large cations (+- smaller ones)
Hey's CIM Ref.:7.20.13

7 : Oxides and Hydroxides
20 : Oxides of Fe
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Type Occurrence of Srebrodolskite

Type Locality:Kopeisk, Chelyabinsk coal basin, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia
Year of Discovery:1985

Physical Properties of Srebrodolskite

Lustre:Adamantine
Colour:Black
Streak:Grayish brown
Hardness (Mohs):

Crystallography of Srebrodolskite

Crystal System:Orthorhombic
Cell Parameters:a = 5.42Å, b = 14.75Å, c = 5.59Å
Ratio:a:b:c = 0.367 : 1 : 0.379
Unit Cell Volume:V 446.89 ų (Calculated from Unit Cell)

Optical Data of Srebrodolskite

Type:Biaxial (-)
RI values: nα = 2.240 nβ = 2.250 nγ = 2.270
Maximum Birefringence:δ = 0.030

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:relatively strong

Chemical Properties of Srebrodolskite

Formula:
Ca
 
2
Fe
 
2
O
 
5
Essential elements:Ca, Fe, O
All elements listed in formula:Ca, Fe, O

Relationship of Srebrodolskite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.AC.05Swedenborgite
NaBe
 
4
SbO
 
7
4.AC.10Brownmillerite
Ca
 
2
(Al,Fe
3+
 
)
 
2
O
 
5
4.AC.15Montroydite
HgO
4.AC.20Litharge
PbO
4.AC.20Romarchite
SnO
4.AC.25Massicot
PbO
Related Minerals - Hey's Index Grouping:

- +
7.20.1Wüstite
FeO
7.20.2Magnetite
Fe
2+
 
Fe
3+
2
O
 
4
7.20.3Maghemite
Fe
 
2
O
 
3
7.20.4Hematite
Fe
 
2
O
 
3
7.20.5Goethite
α-Fe
3+
 
O(OH)
7.20.6Akaganeite
β-Fe
3+
 
O(OH,Cl)
7.20.7Feroxyhyte
Fe
3+
 
O(OH)
7.20.8Lepidocrocite
γ-Fe
3+
 
O(OH)
7.20.9Ferrihydrite
Fe
 
5
O
 
3
(OH)
 
9
7.20.10Amakinite
(Fe
2+
 
,Mg)(OH)
 
2
7.20.11Magnesioferrite
MgFe
3+
2
O
 
4
7.20.12Muskoxite
Mg
 
7
Fe
 
4
O
 
13
·10H
 
2
O
7.20.14Hercynite
FeAl
 
2
O
 
4
7.20.15Brownmillerite
Ca
 
2
(Al,Fe
3+
 
)
 
2
O
 
5

Other Names for Srebrodolskite

Synonyms:
IMA1984-050
Other Languages:
German:Srebrodolskit
Russian:Сребродольскит
Spanish:Srebrodolskita

Other Information

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 Srebrodolskite

Reference List:Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1985): 114(2): 195-199.

American Mineralogist (1986): 71: 1279-1280.

Acta Chemica Scandinavica: 25: 3616-3624.

Internet Links for Srebrodolskite

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  • Raman and XRD data at RRUFF project
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    Localities for Srebrodolskite

    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.
    (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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Ústí Region
        • Duchcov (Dux)
    Žáček V., Skála R., Chlupáčová M., Dvořák Z. 2005: Ca-Fe3+-rich, Si-undersaturated buchite from Želénky, North-Bohemian Brown Coal Basin, Czech Republic. Eur. J. Mineral., 17, 623-633
    Germany
     
    • Rhineland-Palatinate
      • Eifel Mts
        • Mayen
          • Ettringen
            • Bellerberg volcano
              • Ettringer Bellerberg Mt. (Bellberg Mt.; Bellenberg Mt.; Billenberg Mt.; Boilenberg Mt.)
    Lapis, 15 (5), 9-36.
              • Southern lava flow
                • Mayener Feld
    Rüdinger, B.; Tillmanns, E. Hentschel, G. (1993): Bellbergite – a New Mineral with the Zeolite Structure Type EAB, Mineralogy and Petrology 48, 147-152
    • Thuringia
      • Gera
        • Ronneburg U deposit
    XRD and SEM-EDX analysis (T. Witzke)
    Russia
     
    • Northern Caucasus Region
      • Kabardino-Balkarian Republic
    American Mineralogist, Volume 94, pages 1361–1370, 2009
    Galuskin, et al., EJM fast-track (2009)
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Chelyabinsk coal basin
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality
    Google
     
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