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Sergeevite

Formula:
Ca
 
2
Mg
 
11
(CO
 
3
)
 
13
·10H
 
2
O
Colour:WhiteHardness:3½
Name:Named after Evgeneii Mikhailovich Sergeev (b 1924), Professor of Geology.
This page provides mineralogical data about Sergeevite.

Classification of Sergeevite

IMA status:Approved
Strunz 8th edition ID:5/E.03-80
Nickel-Strunz 10th (pending) edition ID:5.DB.25

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
B : With large and medium-sized cations
Dana 8th edition ID:13.1.7.1

13 : ACID CARBONATES
1 : Miscellaneous
Hey's CIM Ref.:11.4.8

11 : Carbonates
4 : Carbonates of Ca
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Type Occurrence of Sergeevite

Type Locality:Malyi Mukulan Sn Mine, Tyrnyauz Mo-W deposit, Baksan Valley, Kabardino-Balkarian Republic, Northern Caucasus Region, Russia

Physical Properties of Sergeevite

Lustre:Dull
Colour:White
Hardness (Mohs):3½

Optical Data of Sergeevite

Type:Uniaxial
RI values: nα = 1.571 nβ = 1.581
Maximum Birefringence:δ = 1.571

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

Chemical Properties of Sergeevite

Formula:
Ca
 
2
Mg
 
11
(CO
 
3
)
 
13
·10H
 
2
O
Essential elements:C, Ca, H, Mg, O
All elements listed in formula:C, Ca, H, Mg, O

Relationship of Sergeevite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.DB.05Alumohydrocalcite
CaAl
 
2
(CO
 
3
)
 
2
(OH)
 
4
·3H
 
2
O
5.DB.05Nasledovite
PbMn
 
3
Al
 
4
(CO
 
3
)
 
4
SO
 
4
O
 
5
·5H
 
2
O
5.DB.05Para-alumohydrocalcite
CaAl
 
2
(CO
 
3
)
 
2
(OH)
 
4
·6H
 
2
O
5.DB.05UM1977-02-CO:AlCaH
Ca
 
3
Al
 
2
O
 
6
(CO
 
3
)
 
3
·32H
 
2
O
5.DB.10Dresserite
BaAl
 
2
[(OH)
 
2
|CO
 
3
]
 
2
 · H
 
2
O
5.DB.10Dundasite
PbAl
 
2
[(OH)
 
2
|CO
 
3
]
 
2
 · H
 
2
O
5.DB.10Montroyalite
Sr
 
4
Al
 
8
[(OH,F)
 
26
|(CO
 
3
)
 
3
] · 10-11H
 
2
O
5.DB.10Strontiodresserite
(Sr,Ca)Al
 
2
[(OH)
 
2
|CO
 
3
]
 
2
 · H
 
2
O
5.DB.10Petterdite
PbCr
3+
2
(CO
 
3
)
 
2
(OH)
 
4
·H
 
2
O
5.DB.10Kochsándorite
CaAl
 
2
(CO
 
3
)
 
2
(OH)
 
4
 · H
 
2
O
5.DB.15Hydrodresserite
BaAl
 
2
[(OH)
 
2
|CO
 
3
]
 
2
 · 3H
 
2
O
5.DB.20Schuilingite-(Nd)
PbCu(Nd,Gd,Sm,Y)(CO
 
3
)
 
3
(OH)·1.5H
 
2
O
5.DB.30Szymańskiite
Hg
 
16
(Ni,Mg)
 
6
(CO
 
3
)
 
12
(OH)
 
12
(H
 
3
O)
 
8
·3H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
11.4.1Calcite
CaCO
 
3
11.4.2Aragonite
CaCO
 
3
11.4.3Vaterite
CaCO
 
3
11.4.4Monohydrocalcite
CaCO
 
3
·H
 
2
O
11.4.5Ikaite
CaCO
 
3
·6H
 
2
O
11.4.6Dolomite
CaMg(CO
 
3
)
 
2
11.4.7Huntite
CaMg
 
3
(CO
 
3
)
 
4

Other Names for Sergeevite

Synonyms:
IMA1979-038
Other Languages:
German:Sergeevit
Spanish:Sergeevita

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 Sergeevite

Reference List:American Mineralogist (1981): 66: 1100.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva : 109(2): 217-223.

Internet Links for Sergeevite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Sergeevite in the Natural History Museum (London) online catalogue
  • Sergeevite details from Handbook of Mineralogy (PDF)
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    Localities for Sergeevite

    (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
     
    • Northern Caucasus Region
      • Kabardino-Balkarian Republic
        • Baksan valley
          • Tyrnyauz Mo-W deposit
    		ZVMO 109 (1980), 217; AM 66 (1981), 1100
    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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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Oct 2009 08:04:02