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Solongoite

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Formula:
Ca
 
2
(H
 
3
B
 
3
O
 
7
)(OH)Cl
System:MonoclinicColour:Colourless
Hardness:
Member of:Inderite Group
Name:Named after its discovery locality

Classification of Solongoite

IMA status:Approved 1973
Strunz 8th edition ID:5/H.06-60
Nickel-Strunz 10th (pending) edition ID:6.CA.40

6 : BORATES
C : Triborates
A : Neso-triborates
Dana 8th edition ID:25.3.2.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
3 : Triborates
Hey's CIM Ref.:10.1.11

10 : Borates with other anions
1 : Borates with halide
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Type Occurrence of Solongoite

Type Locality:Solongo B deposit, Vitim Plateau, Buriatia Republic (Buryatia), Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
Year of Discovery:1973

Physical Properties of Solongoite

Lustre:Vitreous
Colour:Colourless
Hardness (Mohs):

Crystallography of Solongoite

Crystal System:Monoclinic
Cell Parameters:a = 7.93Å, b = 7.26Å, c = 12.54Å
β = 94°
Ratio:a:b:c = 1.092 : 1 : 1.727
Unit Cell Volume:V 720.19 ų (Calculated from Unit Cell)

Optical Data of Solongoite

Type:Biaxial (+)
RI values: nα = 1.510 nβ = 1.510 nγ = 1.545
Maximum Birefringence:δ = 0.035

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:r > v strong

Chemical Properties of Solongoite

Formula:
Ca
 
2
(H
 
3
B
 
3
O
 
7
)(OH)Cl
Simplified for copy/paste:Ca2(H3B3O7)(OH)Cl
Essential elements:B, Ca, Cl, H, O
All elements listed in formula:B, Ca, Cl, H, O

Relationship of Solongoite to other Species

Member of:Inderite Group
Other Members of Group:

- +
Inderborite
CaMg(H
 
3
B
 
3
O
 
7
)
 
2
· 8H
 
2
O
Inderite
MgB
 
3
O
 
3
(OH)
 
5
· 5H
 
2
O
Inyoite
Ca(H
 
4
B
 
3
O
 
7
)(OH) · 4H
 
2
O
Kurnakovite
MgB
 
3
O
 
3
(OH)
 
5
· 5H
 
2
O
Meyerhofferite
Ca
 
2
(H
 
3
B
 
3
O
 
7
)
 
2
· 4H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
6.CA.10Ameghinite
Na(H
 
4
B
 
3
O
 
7
)
6.CA.15Inderite
MgB
 
3
O
 
3
(OH)
 
5
· 5H
 
2
O
6.CA.20Kurnakovite
MgB
 
3
O
 
3
(OH)
 
5
· 5H
 
2
O
6.CA.25Inderborite
CaMg(H
 
3
B
 
3
O
 
7
)
 
2
· 8H
 
2
O
6.CA.30Meyerhofferite
Ca
 
2
(H
 
3
B
 
3
O
 
7
)
 
2
· 4H
 
2
O
6.CA.35Inyoite
Ca(H
 
4
B
 
3
O
 
7
)(OH) · 4H
 
2
O
6.CA.45Peprossiite-(Ce)
(Ce,La)(Al
 
3
O)
 
2/3
B
 
4
O
 
10
6.CA.50Nifontovite
Ca
 
3
B
 
6
O
 
6
(OH)
 
12
(H
 
2
O)
 
2
6.CA.55Olshanskyite
Ca
 
3
[B(OH)
 
4
]
 
4
(OH)
 
2
Related Minerals - Hey's Index Grouping:

- +
10.1.1Teepleite
Na
 
2
[B(OH)
 
4
]Cl
10.1.2Bandylite
Cu[B(OH)
 
4
]Cl
10.1.3Berborite
Be
 
2
(BO
 
3
)(OH,F) · H
 
2
O
10.1.4Fluoborite
Mg
 
3
(BO
 
3
)(F,OH)
 
3
10.1.5Boracite
Mg
 
3
(B
 
7
O
 
13
)Cl
10.1.6Karlite
Mg
 
7
(BO
 
3
)
 
3
(OH,Cl)
 
5
10.1.7Shabynite
Mg
 
5
(BO
 
3
)(OH)
 
5
(Cl,OH)
 
2
· 4H
 
2
O
10.1.8/9/10Hilgardite
Ca
 
2
B
 
5
O
 
9
Cl · H
 
2
O
10.1.12Hydrochlorborite
Ca
 
4
B
 
8
O
 
15
Cl
 
2
· 21H
 
2
O
10.1.13Ekaterinite
Ca
 
2
(B
 
4
O
 
7
)(Cl,OH)
 
2
· 2H
 
2
O
10.1.14Volkovskite
KCa
 
4
[B
 
5
O
 
8
OH]
 
4
[B(OH)
 
3
]
 
2
Cl · 4H
 
2
O
10.1.15Chelkarite
CaMgB
 
2
O
 
4
(Cl,OH)
 
2
· 5H
 
2
O Or near, with Cl:OH = 3:1
10.1.16Johachidolite
CaAlB
 
3
O
 
7
10.1.17Satimolite
KNa
 
2
Al
 
4
[Cl|B
 
2
O
 
5
]
 
3
· 13H
 
2
O
10.1.18Chambersite
Mn
2+
3
(B
 
7
O
 
13
)Cl
10.1.19Congolite
(Fe
2+
 
,Mg)
 
3
(B
 
7
O
 
13
)Cl
10.1.20Ericaite
Fe
2+
3
(B
 
7
O
 
13
)Cl

Other Names for Solongoite

Synonyms:
IMA1973-017
Other Languages:
German:Solongoit
Russian:Солонгоит
Simplified Chinese:斜氯硼钙石
Spanish:Solongoita
Traditional Chinese:斜氯硼鈣石

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 Solongoite

Reference List:

- +
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1974): 113: 117-121.

American Mineralogist (1975): 60: 162.

Soviet Physics – Doklady: 19: 326-327.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for Solongoite

Search Engines:
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  • External Links:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Solongoite details from Handbook of Mineralogy (PDF)
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  • Localities for Solongoite

    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.
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Okayama Prefecture
          • Takahashi City
            • Bitchu-cho-fuka (Bicchu-cho-fuka)
    (I. Pekov analyses)
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia Republic (Buryatia)
          • Vitim Plateau
    American Mineralogist, Volume 87, pages 1509–1513, 2002; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality  
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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.
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