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Solongoite

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About SolongoiteHide

Formula:
Ca2(H3B3O7)(OH)Cl
Colour:
Colourless
Lustre:
Vitreous
Hardness:
Crystal System:
Monoclinic
Member of:
Name:
Named after its discovery locality

Classification of SolongoiteHide

Approved
Approval Year:
1973
6.CA.40

6 : BORATES
C : Triborates
A : Neso-triborates
25.3.2.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
3 : Triborates
10.1.11

10 : Borates with other anions
1 : Borates with halide

Physical Properties of SolongoiteHide

Vitreous
Colour:
Colourless
Hardness:
3½ on Mohs scale

Optical Data of SolongoiteHide

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

Formula:
Ca2(H3B3O7)(OH)Cl
IMA Formula:
Ca2B3O4(OH)4Cl

Crystallography of SolongoiteHide

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

Type Occurrence of SolongoiteHide

Synonyms of SolongoiteHide

Other Language Names for SolongoiteHide

German:Solongoit
Simplified Chinese:斜氯硼钙石
Spanish:Solongoita
Traditional Chinese:斜氯硼鈣石

Relationship of Solongoite to other SpeciesHide

Member of:
Other Members of this group:
InderboriteCaMg(H3B3O7)2 · 8H2OMon. 2/m
InderiteMgB3O3(OH)5 · 5H2OMon. 2/m : P21/b
InyoiteCa(H4B3O7)(OH) · 4H2OMon. 2/m
KurnakoviteMgB3O3(OH)5 · 5H2OTric. 1 : P1
MeyerhofferiteCa2(H3B3O7)2 · 4H2OTric. 1 : P1

Related Minerals - Nickel-Strunz GroupingHide

6.CA.10AmeghiniteNa(H4B3O7)Mon.
6.CA.15InderiteMgB3O3(OH)5 · 5H2OMon. 2/m : P21/b
6.CA.20KurnakoviteMgB3O3(OH)5 · 5H2OTric. 1 : P1
6.CA.25InderboriteCaMg(H3B3O7)2 · 8H2OMon. 2/m
6.CA.30MeyerhofferiteCa2(H3B3O7)2 · 4H2OTric. 1 : P1
6.CA.35InyoiteCa(H4B3O7)(OH) · 4H2OMon. 2/m
6.CA.45Peprossiite-(Ce)(Ce,La)(Al3O)2/3B4O10Hex. 6 m2 : P62m
6.CA.50NifontoviteCa3B6O6(OH)12(H2O)2Mon.
6.CA.55OlshanskyiteCa2[B3O3(OH)6](OH) · 3H2O

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

10.1.1TeepleiteNa2[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
10.1.2BandyliteCu[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
10.1.3BerboriteBe2(BO3)(OH,F) · H2OTrig.
10.1.4FluoboriteMg3(BO3)(F,OH)3Hex.
10.1.5BoraciteMg3(B7O13)ClOrth. mm2 : Pca21
10.1.6KarliteMg7(BO3)3(OH,Cl)5Orth.
10.1.7ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
10.1.8/9/10HilgarditeCa2B5O9Cl · H2OTric. 1 : P1
10.1.12HydrochlorboriteCa4B8O15Cl2 · 21H2OMon.
10.1.13EkateriniteCa2(B4O7)(Cl,OH)2 · 2H2OHex.
10.1.14VolkovskiteKCa4[B5O8OH]4[B(OH)3]2Cl · 4H2OTric. 1 : P1
10.1.15ChelkariteCaMgB2O4(Cl,OH)2 · 5H2O Or near, with Cl:OH = 3:1Orth.
10.1.16JohachidoliteCaAlB3O7Orth. mmm (2/m 2/m 2/m) : Cmma
10.1.17SatimoliteKNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4·4H2OTrig. 3m (3 2/m) : R3m
10.1.18ChambersiteMn2+3(B7O13)ClOrth. mm2 : Pca21
10.1.19Congolite(Fe2+,Mg)3(B7O13)ClTrig. 3m : R3c
10.1.20EricaiteFe2+3(B7O13)ClOrth.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for SolongoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 SolongoiteHide

Localities for SolongoiteHide

ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Japan
 
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
(I. Pekov analyses)
Russia (TL)
 
  • Zabaykalsky Krai
    • 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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