Nifontovite Mineral Data

General Nifontovite Information

Chemical Formula:

Ca3B6O6(OH)12•2(H2O)

Composition:

Molecular Weight = 521.21 gm

Calcium 23.07 % Ca 32.28 % CaO

Boron 12.44 % B 40.07 % B₂O₃

Hydrogen 3.09 % H 27.65 % H₂O

Oxygen 61.39 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₃B₆O₆(OH)₁₂•2(H₂O)

IMA Status:

Approved IMA 1961

Locality:

Novofrolovo mine, Ural Mountains, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for Roman V. Nifontov (1901-1960), Russian geologist.

Name Pronunciation:

Nifontovite + Pronunciation

Synonym:

ICSD 20196

PDF 46-1465

Nifontovite Image

Images:

Nifontovite

Comments: Transparent spray of nifontovite crystals.
Location: Fuka Mine, Bicchu Town, Kawakama Co., Okayama Pref., Japan. Scale: Crystal size 2.3x0.7x0.5 cm.
© John Veevaert

Nifontovite Crystallography

Axial Ratios:

a:b:c =1.378:1:1.4283

Cell Dimensions:

a = 13.089, b = 9.498, c = 13.566, Z = 4; beta = 119.58° V = 1,466.71 Den(Calc)= 2.36

Crystal System:

Monoclinic Space Group: C 2/c,Cc

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 7.28(1), 2.238(0.8), 3.84(0.8),

Physical Properties of Nifontovite

Cleavage:

{???} Indistinct

Color:

Colorless, Gray.

Density:

2.36

Diaphaneity:

Transparent

Hardness:

3.5 - Copper Penny

Luminescence:

Fluorescent, Long UV=violet.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Nifontovite

Gladstone-Dale:

CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.011 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2453,KPDmeas= 0.2453,KC= 0.248
Ncalc = 1.59

Optical Data:

Biaxial (+), a=1.575, b=1.578, g=1.584, bire=0.0090, 2V(Calc)=72, 2V(Meas)=76. Dispersion r > v strong.

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Nifontovite

Electron Density:

Bulk Density (Electron Density)=2.41 gm/cc
note: Specific Gravity of Nifontovite =2.36 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Nifontovite= 3.00 barns/electron
U=PE_Nifontovite x rElectron Density= 7.23 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nifontovite is Not Radioactive

Nifontovite Classification

Dana Class:

26.03.07.01 (26)Hydrated Borates Containing Hydroxyl or Halogen

(26.03)Dana Type

(26.03.07)Dana Group

26.03.07.01 Nifontovite Ca3B6O6(OH)12•2(H2O) C 2/c,Cc Mono

Strunz Class:

06.CA.50 06 - BORATES

06.C - Triborates

06.CA -Neso-triborates

06.CA.50 Nifontovite Ca3B6O6(OH)12•2(H2O) C 2/c,Cc Mono

Other Nifontovite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990;Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Nifontovite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Nifontovite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Nifontovite :

Ask about Nifontovite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Nifontovite Specimen Label here :

Nifontovite

Ca3B6O6(OH)12•2(H2O)
Dana No: 26.03.07.01 Strunz No: 06.CA.50
Locality:

Notes:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.