Ferruccite Mineral Data

General Ferruccite Information

Chemical Formula:

NaBF4

Composition:

Molecular Weight = 109.79 gm

Sodium 20.94 % Na 28.23 % Na₂O

Boron 9.85 % B 31.70 % B₂O₃

Fluorine 69.22 % F 69.22 % F

- % F -29.14 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaBF₄

IMA Status:

Valid Species (Pre-IMA) 1933

Locality:

Vesuvio (Vesuvius), Napoli, Campania, Italy Link to MinDat.org Location Data.

Name Origin:

Named for Ferruccio Zambonini.

Name Pronunciation:

Ferruccite + Pronunciation

Synonym:

ICSD 36067

PDF 11-671

Ferruccite Image

Images:

Ferruccite Avogadrite

Comments: Very small, white crystals of ferrite on massive, yellowish avogadrite.
Location: Vesuvius, Naples, Naples province, Campania, Italy. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Ferruccite Crystallography

Axial Ratios:

a:b:c =1.0912:1:1.0832

Cell Dimensions:

a = 6.82, b = 6.25, c = 6.77, Z = 4; V = 288.57 Den(Calc)= 2.53

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: C mcm

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

By Intensity(I/I_o): 3.39(1), 3.41(0.85), 2.31(0.4),

Physical Properties of Ferruccite

Cleavage:

{100} Good, {010} Good, {001} Good

Color:

Colorless, White.

Density:

2.496

Diaphaneity:

Transparent

Hardness:

3 - Calcite

Streak:

white

Optical Properties of Ferruccite

Optical Data:

Biaxial (+), a=1.301, b=1.3012, g=1.3068, bire=0.0058, 2V(Calc)=22, 2V(Meas)=11.417.

Calculated Properties of Ferruccite

Electron Density:

Bulk Density (Electron Density)=2.40 gm/cc
note: Specific Gravity of Ferruccite =2.53 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Ferruccite= 0.78 barns/electron
U=PE_Ferruccite x rElectron Density= 1.86 barns/cc.

Radioactivity:

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

Ferruccite Classification

Dana Class:

11.02.03.01 (11)Halide Complexes; Alumino-fluorides

(11.02)where (A)m B (X)4

(11.02.03)Dana Group

11.02.03.01 Ferruccite NaBF4 C mcm 2/m 2/m 2/m

Strunz Class:

03.CA.05 03 - HALIDES

03.C - Complex Halides

03.CA -Borofluorides

03.CA.05 Ferruccite NaBF4 C mcm 2/m 2/m 2/m

Other Ferruccite Information

References:

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

See Also:

Links to other databases for Ferruccite :
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

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Ferruccite

NaBF4
Dana No: 11.02.03.01 Strunz No: 03.CA.05
Locality:

Notes:

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