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Nifontovite

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Formula:
Ca3B6O6(OH)12(H2O)2
System:
Monoclinic
Hardness:
Name:
For Russian geologist Roman V. Nifontov (1901-1960).

Classification of Nifontovite

Approved
6.CA.50

6 : BORATES
C : Triborates
A : Neso-triborates
26.3.7.1

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
3 : Triborates
9.3.10

9 : Borates
3 : Borates of Ca and Sr
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Type Occurrence of Nifontovite

Year of Discovery:
1961

Physical Properties of Nifontovite

Hardness (Mohs):

Crystallography of Nifontovite

Crystal System:
Monoclinic
Cell Parameters:
a = 13.08Å, b = 9.49Å, c = 13.56Å
β = 119.58°
Ratio:
a:b:c = 1.378 : 1 : 1.429
Unit Cell Volume:
V 1,463.82 ų (Calculated from Unit Cell)

Optical Data of Nifontovite

Type:
Biaxial (+)
RI values:
nα = 1.575 nβ = 1.578 nγ = 1.584
Max Birefringence:
δ = 0.009
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
very weak

Chemical Properties of Nifontovite

Formula:
Ca3B6O6(OH)12(H2O)2
Essential elements:
All elements listed in formula:

Relationship of Nifontovite to other Species

6.CA.10AmeghiniteNa(H4B3O7)
6.CA.15InderiteMgB3O3(OH)5 · 5H2O
6.CA.20KurnakoviteMgB3O3(OH)5 · 5H2O
6.CA.25InderboriteCaMg(H3B3O7)2 · 8H2O
6.CA.30MeyerhofferiteCa2(H3B3O7)2 · 4H2O
6.CA.35InyoiteCa(H4B3O7)(OH) · 4H2O
6.CA.40SolongoiteCa2(H3B3O7)(OH)Cl
6.CA.45Peprossiite-(Ce)(Ce,La)(Al3O)2/3B4O10
6.CA.55OlshanskyiteCa2[B3O3(OH)6](OH) · 3H2O
9.3.1CalciboriteCa(B2O4)
9.3.2SibirskiteCa2(HB2O5)(OH)
9.3.3FabianiteCaB3O5OH
9.3.4UralboriteCa2[B3O3(OH)5 · OB(OH)3]
9.3.5VimsiteCaB2O2(OH)4
9.3.6OlshanskyiteCa2[B3O3(OH)6](OH) · 3H2O
9.3.7FroloviteCa[B(OH)4]2
9.3.8KorzhinskiteCa(B2O4) · H2O
9.3.9TyretskiteCa2B5O9OH · H2O
9.3.12InyoiteCa(H4B3O7)(OH) · 4H2O
9.3.13GoweriteCa[B5O8(OH)][B(OH)3] · 3H2O
9.3.14ColemaniteCa[B3O4(OH)3] · H2O
9.3.15PentahydroboriteCaB2O(OH)6 · 2H2O
9.3.16HexahydroboriteCa[B(OH)4]2 · 6H2O
9.3.17MeyerhofferiteCa2(H3B3O7)2 · 4H2O
9.3.18PriceiteCa2B5O7(OH)5 · H2O
9.3.19GinoriteCa2B14O23 · 8H2O
9.3.20ProbertiteNaCaB5O7(OH)4 · 3H2O
9.3.21UlexiteNaCa[B5O6(OH)6] · 5H2O
9.3.22HydroboraciteCaMg[B3O4(OH)3]2 · 3H2O
9.3.23InderboriteCaMg(H3B3O7)2 · 8H2O
9.3.24WardsmithiteCa5Mg[B4O7]6 · 30H2O
9.3.25HenmiliteCa2Cu[B(OH)4]2(OH)4
9.3.26StrontioboriteSrB8O11(OH)4
9.3.27VeatchiteSr2B11O16(OH)5 · H2O
9.3.28Veatchite-ASr2B11O16(OH)5 · H2O
9.3.29 P-Veatchite
9.3.30 BalavinskiteSr2B6O11 · 4H2O
9.3.31TunelliteSrB6O9(OH)2 · 3H2O
9.3.32Strontioginorite(Sr,Ca)2B14O23 · 8H2O

Other Names for Nifontovite

Name in Other Languages:
German:Nifontovit
Simplified Chinese:粒水硼钙石
Spanish:Nifontovita
Traditional Chinese:粒水硼鈣石

Other Information

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 Nifontovite

Reference List:
American Mineralogist (1962): 47: 172.

YEGOROV-TISMENKO, YU. K., SIMONOV, M. A., and BELOV, N. V. (1973): Crystal structure of nifontovite Ca3[B3O3(OH)2.2H2O, a natural calcium metaborate. Doklady Akademia Nauk SSSR, 210, 678-681. [Engl. transl. in Soviet Physics – Doklady: 23 (1973) 159-161.]

KUSACHI, I. and HENMI, C. (1994): Nifontovite and olshanskyite from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 58, 279-284.

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

Hawthorne, F.C., Pinch, W.W., Pough, F.H. (2005): Nifontovite: From Charcas, San Luis Potosi, Mexico. Mineralogical Record, 36, xx-xx.

Internet Links for Nifontovite

Specimens:
The following Nifontovite specimens are currently listed for sale on minfind.com.

Localities for Nifontovite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
China
 
  • Inner Mongolia Autonomous Region
    • Ulanhad League (Chifeng Prefecture)
      • Linxi Co.
        • Linxi
Ottens, B. & Bin, J. (2014): Seltene Boratmineralien aus der Inneren Mongolei, China. Lapis, 39 (7/8), 66-68.
Japan
 
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
Mineralogical Record: 27: 306.; Journal of Mineralogical and Petrological Sciences Vol. 99 (2004) , No. 2 April 67-71; I. Kusachi, Y. Takechi, C. Henmi and S. Kobayashi (1998) Parasibirskite, a New Mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine 62:521-525.
Mexico
 
  • San Luis Potosí
    • Mun. de Charcas
Min Rec 36:4 pp375-376, Min Rec (2009) 40:74
Arizona Lapidary & Gem Rough specimen
Lapis 34 (4), 2009, p. 38
Russia (TL)
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Krasnoturjinsk (Bogolovsk; Krasnotur'insk; Krasnoturyinsk)
          • Turya river
            • Turjinsk
Min Rec 36:4 pp375-376; 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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