Vitimite Mineral Data

General Vitimite Information

Chemical Formula:

Ca6B14O19(SO4)(OH)14•5(H2O)

Composition:

Molecular Weight = 1,125.95 gm

Calcium 22.07 % Ca 30.88 % CaO

Boron 13.44 % B 43.28 % B₂O₃

Hydrogen 2.10 % H 18.80 % H₂O

Sulfur 2.85 % S 7.11 % SO₃

Oxygen 59.54 % O

______ ______

100.00 % 100.07 % = TOTAL OXIDE

Empirical Formula:

Ca_6.2B₁₄O_19.2(SO₄)(OH)_13.9•4.8(H₂O)

Environment:

In veinlets in boron ores of the Sonlongo deposit.

IMA Status:

Approved IMA 2001 (Dana # Added)

Locality:

Solongo deposit in Buryatia, Transbaikal region, Russia Link to MinDat.org Location Data.

Name Origin:

Named for the Vitim plateau which is near the locality

Synonym:

IMA2001-057

Vitimite Image

Images:

Vitimite

Comments: Sectile white masses of vitimite on skarn rock matrix.
Location: Solongo B deposit, Vitim Plateau, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Sample Size 0.4 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Vitimite Crystallography

Axial Ratios:

a:b:c =0.7219:1:0.7194

Cell Dimensions:

a = 14.1, b = 19.53, c = 14.05, Z = 4; beta = 120.39° V = 3,337.40 Den(Calc)= 2.24

Crystal System:

Monoclinic Space Group: P 2/m, P 2, Pm, pseudo-hex

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

By Intensity(I/I_o): 12.2(1)(100,001), 2.72(0.7)(171,170,071), 3.036(0.6)(400,004),1.992(0.5)(541,304,417), 3.45(0.5)(333), 2.108(0.4), 2.911(0.4), 4.42(0.4),

Physical Properties of Vitimite

Color:

White.

Density:

2.29

Diaphaneity:

Transparent

Fracture:

Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Compact - Occurs as a compact mass.

Habit:

Fibrous - Crystals made up of fibers.

Hardness:

1.5 - Between Talc and Gypsum

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Vitimite

Gladstone-Dale:

CI meas= 0.001 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2394,KPDmeas= 0.2342,KC= 0.2344
Ncalc = 1.53 - 1.54

Optical Data:

Biaxial (-), a=1.532, b=1.537, g=1.54, bire=0.0080, 2V(Calc)=74, 2V(Meas)=75. Dispersion r > v.

Calculated Properties of Vitimite

Electron Density:

Bulk Density (Electron Density)=2.31 gm/cc
note: Specific Gravity of Vitimite =2.29 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Vitimite= 3.06 barns/electron
U=PE_Vitimite x rElectron Density= 7.07 barns/cc.

Radioactivity:

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

Vitimite Classification

Dana Class:

27.01.11.01 (27)Compound Borates

(27.01)Dana Type

(27.01.11)Dana Group

27.01.11.01 Vitimite! Ca6B14O19(SO4)(OH)14•5(H2O) P 2/m, P 2, Pm, pseudo-hex Mono

Strunz Class:

06.HA.45 06 - BORATES

06.H - Unclassified Borates

06.HA -Unclassified borates

06.HA.45 Vitimite! Ca6B14O19(SO4)(OH)14•5(H2O) P 2/m, P 2, Pm, pseudo-hex Mono

Other Vitimite Information

References:

NAME( AmMin, v 88, p 1839) PHYS. PROP.(AmMin, v 88, p 1839) OPTIC PROP.(AmMin, v 88, p 1839)

See Also:

Links to other databases for Vitimite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Vitimite

Ca6B14O19(SO4)(OH)14•5(H2O)
Dana No: 27.01.11.01 Strunz No: 06.HA.45
Locality:

Notes:

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