Mineralogy Database

Macedonite Mineral Data

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General Macedonite Information

Help on Chemical  Formula: Chemical Formula: PbTiO3
Help on Composition: Composition: Molecular Weight = 303.08 gm
   Titanium  15.80 %  Ti   26.36 % TiO2
   Lead      68.37 %  Pb   73.64 % PbO
   Oxygen    15.84 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbTiO3
Help on Environment: Environment: Rare secondary mineral in microcline-quartz syenite pegmatite veins.
Help on IMA Status: IMA Status: Approved IMA 1971
Help on Locality: Locality: Crni Kamen, near Prilep, Macedonia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Macedonite + Pronunciation Say MACEDONITE
Help on Synonym: Synonym: ICSD 61168
  PDF 6-452
 

Macedonite Image

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  Macedonite

Comments: B&W image of pseudo-cubic macedonite grains. (AmMin, v56:387).
Location: Accessory mineral in the amazonite-rich, quartz-syenite veins in Crni Kamen near Prilep, Macedonia. Scale: Picture size 100 x.
© American Mineralogist

Macedonite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.08228
Help on Cell Dimensions: Cell Dimensions: a = 3.889, c = 4.209, Z = 1; V = 63.66 Den(Calc)= 7.91
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.843(1), 1.603(0.9), 2.728(0.8),
 

Physical Properties of Macedonite

Help on Cleavage: Cleavage: None
Help on Color: Color: Black.
Help on Density: Density: 7.82
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: yellow gray
 

Optical Properties of Macedonite

Help on Dichroism (e): Dichroism (e): brownish yellow.
Help on Dichroism (w): Dichroism (w): brownish greenish yellow.
Help on Optical Data: Optical Data: Uniaxial (?).
  NCalc= 2.59 - from Gladstone-Dale relationship (KC = 0.2015) where Ncalc=Dcalc*KC+1
NCalc= 2.58 - from Gladstone-Dale relationship (KC = 0.2015) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Very weak.
Help on RL Color: RL Color: Grayish white with yellow brown to dark brownish green interanal reflections.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Macedonite in Air
λ R  ∑ R(λ) 
 470 nm   22.50   
 490 nm   22.20 
 510 nm   21.80 
 530 nm   21.20 
 546 nm   21.00 
 570 nm   20.90 
 589 nm   20.80 
 610 nm   20.60 
 630 nm   20.40 
 650 nm   20.20 
Calculated Relative Intensity Colors of Macedonite in Air
Relative
Intensity
   0%   50% 100% 150% 200% 250% 300% 350% 400% 430%
R                    
 

Calculated Properties of Macedonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.68 gm/cc
note: Specific Gravity of Macedonite =7.91 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.17
Boson Index = 0.83
Help on Photoelectric: Photoelectric: PEMacedonite =1,245.44 barns/electron
U=PEMacedonite x rElectron Density=8,321.19 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Macedonite is Not Radioactive
 

Macedonite Classification

Help on  Dana Class: Dana Class: 04.03.06.01 (04)Simple Oxides
  (04.03)with a cation charge of 3+ (A+++2 O3)
  (04.03.06)Dana Group
 
04.03.06.01 Macedonite PbTiO3 P 4/mmm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 04.CC.35 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.C - Metal:Oxygen = 2:3, 3:5, and Similar
  04.CC -With large and medium-sized cations
 
04.CC.35 Isolueshite! (Na,La,Ca)(Nb,Ti)O3 P m3m 4/m 3 2/m
 
04.CC.35 Loparite-(Ce) (Ce,Na,Ca)2(Ti,Nb)2O6 P m3m 4/m 3 2/m
 
04.CC.35 Macedonite PbTiO3 P 4/mmm 4/m 2/m 2/m
 
04.CC.35 Tausonite SrTiO3 P m3m 4/m 3 2/m
 

Other Macedonite 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 Macedonite :
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

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

Macedonite

PbTiO3
Dana No: 04.03.06.01 Strunz No: 04.CC.35
Locality:

 

Notes:

 

 
   
 


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