Rosiaite Mineral Data
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General Rosiaite Information
Chemical Formula:
PbSb+++++2O6
Composition:
Molecular Weight = 546.70 gm
Antimony 44.54 % Sb 59.17 % Sb2 O5
Lead 37.90 % Pb 40.83 % PbO
Oxygen 17.56 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
PbSb2 O6
IMA Status:
Approved IMA 1995 (Dana # Added)
Locality:
Cetine di Cotorniano Mine (Cetine Mine), Rosia, Siena Province, Tuscany, Italy Link to MinDat.org Location Data.
Name Origin:
Named for the locality.
Name Pronunciation:
Rosiaite
Synonym:
ICSD 202391
IMA1995-021
PDF 34-912
Rosiaite Image
Images:
Rosiaite Crystallography
Axial Ratios:
a:c = 1:1.01454
Cell Dimensions:
a = 5.295, c = 5.372, Z = 1; V = 130.44 Den(Calc)= 6.96
Crystal System:
Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: P 3 1m
X Ray Diffraction:
By Intensity(I/Io ): 3.488(1), 2.648(0.35), 2.109(0.22),
Physical Properties of Rosiaite
Cleavage:
None
Color:
Colorless, Light yellow.
Density:
6.96
Diaphaneity:
Transparent
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Hardness:
5.5 - Knife Blade
Luster:
Resinous
Streak:
white
Optical Properties of Rosiaite
Gladstone-Dale:
CI meas = 0.002 (Superior) - where the CI = (1-KPDmeas /KC ) CI calc = 0.002 (Superior) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.1445,KPDmeas = 0.1445,KC = 0.1448 Ncalc = 2.01
Optical Data:
Uniaxial (-), e=1.92, w=2.092, bire=0.1720.
Calculated Properties of Rosiaite
Electron Density:
Bulk Density (Electron Density)=5.91 gm/cc note: Specific Gravity of Rosiaite =6.96 gm/cc.
Fermion Index:
Fermion Index = 0.08 Boson Index = 0.92
Photoelectric:
PERosiaite = 839.85 barns/electronU=PERosiaite x r Electron Density=4,961.17 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Rosiaite is Not Radioactive
Rosiaite Classification
Dana Class:
08.03.11.02 (08) Multiple Oxides with Nb, Ta, and Ti
(08.03) where A (B2O6)
(08.03.11) Dana Group
08.03.11.01 Changbaiite PbNb2O6 R 3m 3m
08.03.11.02 Rosiaite ! PbSb2O6 P 3 1m 3 2/m
Strunz Class:
04.DH.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
04.D - Metal:Oxygen = 1:2 and similar
04.DH -With large (� medium-sized) cations; sheets of edge-sharing octahedra
04.DH.25 Rosiaite ! PbSb2O6 P 3 1m 3 2/m
Other Rosiaite Information
References:
PHYS. PROP.(Eur. J. Min.,Vol.8,p487-492,1996) OPTIC PROP.(Eur. J. Min.,Vol.8,p487-492,1996)
See Also:
Links to other databases for Rosiaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - WWW-MINCRYST
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Rosiaite
PbSb+++++2O6
Dana No: 08.03.11.02 Strunz No: 04.DH.25
Locality:
Notes:
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