Apuanite Mineral Data (original) (raw)

General Apuanite Information

Help on Chemical Formula: Chemical Formula:

Fe++Fe+++4Sb+++4O12S

Help on Composition: Composition:

Molecular Weight = 990.29 gm

Iron 28.20 % Fe 7.26 % FeO / 32.25 % Fe2O3

Antimony 49.18 % Sb 58.87 % Sb2O3

Sulfur 3.24 % S 3.24 % S2-

- % S -1.62 % -O=S

Oxygen 19.39 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Fe2+Fe3+4Sb4O12S

Help on Environment: Environment:

In an iron deposit in barite formed by low-grade metasomatic processes at the contact between phyllites and dolostones.

Help on IMA Status: IMA Status:

Approved IMA 1978

Help on Locality: Locality:

Buca della Vena mine, northeast of Stazzema, Apuan Alps, Tuscany, Italy. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the locality.

Help on Name Pronunciation: Name Pronunciation:

Apuanite Say APUANITE

Help on Synonym: Synonym:

ICSD 100541

PDF 33-642

Apuanite Image

Click Here for Larger Apuanite Image in a New Browser Window Images:

Click Here for Larger Apuanite Image Apuanite Comments: Black tabular crystal of apuanite on matrix. Location: Buca della Vena Mine, Stazzema, Versilia Valley, Apuan Alps, Tuscany, Italy.Scale: Picture size 1.2 mm. © Thomas Witzke / Abraxas-Verlag

Apuanite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:2.1464

Help on Cell Dimensions: Cell Dimensions:

a = 8.367, c = 17.959, Z = 4; V = 1,257.25 Den(Calc)= 5.23

Help on Crystal System: Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 41/mbc

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.168(1), 1.922(0.47), 2.957(0.43),

Click Here for Large Apuanite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

| | Mellini M , Merlino S , American Mineralogist , 64 (1979) p.1235-1242, Versliaite and apuanite: Derivative structures related to schafarzikite | | ------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Apuanite

Help on Cleavage: Cleavage:

{110} Perfect

Help on Color: Color:

Black.

Help on Density: Density:

5.33

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Help on Hardness: Hardness:

4-5 - Fluorite-Apatite

Help on Luster: Luster:

Metallic

Help on Streak: Streak:

black

Optical Properties of Apuanite

Help on Optical Data: Optical Data:

Uniaxial (?).

NCalc= 2.23 - from Gladstone-Dale relationship (KC = 0.2347) where Ncalc=Dcalc*KC+1
NCalc= 2.25 - from Gladstone-Dale relationship (KC = 0.2347) where Ncalc=Dmeas*KC+1

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Apuanite in Air

λ R1 R 2 ∑ R1(λ) ∑ R2(λ)
470 nm 19.10 20.80
546 nm 21.90 19.60
589 nm 21.60 18.40
650 nm 19.60 16.90

Calculated Relative Intensity Colors of Apuanite in Air

RelativeIntensity 0% 50% 100% 150% 200% 250% 300% 350% 400% 450% 490%
R1
R2

Calculated Properties of Apuanite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.71 gm/cc
note: Specific Gravity of Apuanite =5.23 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0063137157
Boson Index = 0.9936862843

Help on Photoelectric: Photoelectric:

PEApuanite = 169.84 barns/electron
U=PEApuanite x rElectron Density= 800.10 barns/cc.

Help on Radioactivity: Radioactivity:

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

Apuanite Classification

Help on Dana Class: Dana Class:

45.01.09.01 (45)Acid and normal Antimonites, Arsenites and Phosphites

(45.01)with miscellaneous formulae

(45.01.09)Dana Group

45.01.09.01 Apuanite FeFe4Sb4O12S P 41/mbc 4/m 2/m 2/m

Help on Strunz Class: Strunz Class:

04.JA.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JA -Arsenites, antimonites, bismuthites; without additional anions, without H2O

04.JA.25 Apuanite FeFe4Sb4O12S P 41/mbc 4/m 2/m 2/m

Other Apuanite Information

Help on References: References:

NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)

Help on See Also: See Also:

Links to other databases for Apuanite :
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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Ask about Apuanite here :
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Print or Cut-and-Paste your Apuanite Specimen Label here :

Apuanite

Fe++Fe+++4Sb+++4O12S
Dana No: 45.01.09.01 Strunz No: 04.JA.25
Locality:

Notes: