Rosiaite
A valid IMA mineral species
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About Rosiaite
Formula:
PbSb5+2O6
Colour:
Colourless, pale yellow
Lustre:
Resinous
Hardness:
5½
Specific Gravity:
6.96 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
Named after the town near its false discovery locality, the Le Cetine di Cotorniano Mine (near Rosia), Chiusdino, Siena Province, Tuscany, Italy.
The mineral was first found by the collector Claudio Bianchi, who provided the slag samples with rosiaite and clinocervantite for study. In the original paper (Basso et al., 1996) the reported type locality was erroneously indicated as Le Cetine di Cotorniano, due to the incorrect information given by the collector who first found this phase. Thanks to some mineralogists who remarked that the genesis of such a mineral could not occur in a locality without lead, like Le Cetine di Cotorniano Mine, the true story was reconstructed, but only after the paper had already been published (Ciriotti et al., 2009).
The mineral was first found by the collector Claudio Bianchi, who provided the slag samples with rosiaite and clinocervantite for study. In the original paper (Basso et al., 1996) the reported type locality was erroneously indicated as Le Cetine di Cotorniano, due to the incorrect information given by the collector who first found this phase. Thanks to some mineralogists who remarked that the genesis of such a mineral could not occur in a locality without lead, like Le Cetine di Cotorniano Mine, the true story was reconstructed, but only after the paper had already been published (Ciriotti et al., 2009).
Unique Identifiers
Mindat ID:
7274
Long-form identifier:
mindat:1:1:7274:4
Similar Names
IMA Classification of Rosiaite
Classification of Rosiaite
4.DH.25
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Rsi | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Rosiaite
Resinous
Transparency:
Transparent
Colour:
Colourless, pale yellow
Streak:
White
Hardness:
5½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
{0001}
{0001}
Parting:
Possible
Fracture:
Conchoidal
Density:
6.96 g/cm3 (Calculated)
Optical Data of Rosiaite
Type:
Uniaxial (-)
RI values:
nω = 2.092(2) nε = 1.92(1)
Max. Birefringence:
δ = 0.172
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized uniaxial interference figure - the conoscopic
(convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis
centred and vertical. The coloured rings are isochromatics, computed with the
same physics as the Michel-Lévy bar above; the dark cross is the isogyre.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
Chemistry of Rosiaite
Mindat Formula:
PbSb5+2O6
Element Weights:
Elements listed:
Crystallography of Rosiaite
Crystal System:
Trigonal
Class (H-M):
3m(32/m) - Hexagonal Scalenohedral
Space Group:
P31m
Cell Parameters:
a = 5.295(1) Å, c = 5.372(1) Å
Ratio:
a:c = 1 : 1.015
Unit Cell V:
130.44 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Flat tabular hexagonal crystals.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0006628 | Rosiaite | Basso R, Lucchetti G, Zefiro L, Palenzona A (1996) Rosiaite, PbSb2O6, a new mineral from the Cetine mine, Siena, Italy European Journal of Mineralogy 8 487-492 | 1996 | Cetine mine, Siena, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.49 Å | (vs) |
| 2.688 Å | (vw) |
| 2.648 Å | (m) |
| 2.110 Å | (w) |
| 1.887 Å | (w) |
| 1.651 Å | (w) |
| 1.531 Å | (w) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Rosiaite
Place of Conservation of Type Material:
University of Genova
Synonyms of Rosiaite
Other Language Names for Rosiaite
Relationship of Rosiaite to other Species
Member of:
Other Members of Kassite group:
| Kassite | CaTi2O4(OH)2 | Mon. 2/m : P21/b |
| Lucasite-(Ce) | CeTi2(O,OH)6 | Mon. |
| Lucasite-(La) | The La analogue of lucasite-(Ce). | Mon. 2 : B2 |
Common Associates
Associations Based on Photo Data:
| 9 photos of Rosiaite associated with Valentinite | Sb2O3 |
| 6 photos of Rosiaite associated with Clinocervantite | Sb3+Sb5+O4 |
| 3 photos of Rosiaite associated with Tripuhyite | Fe3+Sb5+O4 |
| 1 photo of Rosiaite associated with Roméite Group | A2(Sb5+)2O6Z |
| 1 photo of Rosiaite associated with Strashimirite | Cu8(AsO4)4(OH)4 · 5H2O |
| 1 photo of Rosiaite associated with Oxyplumboroméite | Pb2Sb2O6O |
| 1 photo of Rosiaite associated with Cinnabar | HgS |
| 1 photo of Rosiaite associated with Carminite | PbFe3+2(AsO4)2(OH)2 |
| 1 photo of Rosiaite associated with Covellite | CuS |
Related Minerals - Strunz-mindat Grouping
| 4.DH. | Cesiokenopyrochlore | ◻Nb2(O,OH)6(Cs,◻) |
| 4.DH. | Roméite Group | A2(Sb5+)2O6Z |
| 4.DH. | Oxyplumboroméite | Pb2Sb2O6O |
| 4.DH. | Fluornatropyrochlore | (Na,Pb,Ca,REE,U)2Nb2O6F |
| 4.DH. | Hydroxykenomicrolite | (◻,Na,Sb3+)2Ta2O6(OH,Cs) |
| 4.DH. | 'Fluornatroroméite' | (Na,Ca)2Sb2(O,OH)6F |
| 4.DH. | Oxyyttrobetafite-(Y) | Y2Ti2O6O |
| 4.DH.05 | Thorutite | (Th,U,Ca)Ti2(O,OH)6 |
| 4.DH.05 | Orthobrannerite | U4+U6+Ti4O12(OH)2 |
| 4.DH.05 | Brannerite | UTi2O6 |
| 4.DH.10 | Kassite | CaTi2O4(OH)2 |
| 4.DH.10 | Lucasite-(La) | |
| 4.DH.10 | Lucasite-(Ce) | CeTi2(O,OH)6 |
| 4.DH.15 | 'Fluorhydropyrochlore' | |
| 4.DH.15 | Hydrokenoelsmoreite | ◻2W2O6(H2O) |
| 4.DH.15 | 'Hydroxynatromicrolite' | (Na,Bi3+,◻)2Ta2O6(OH) |
| 4.DH.15 | Hydroplumboelsmoreite | (Pb,◻)(W,Fe3+)2O6 · H2O |
| 4.DH.15 | Hydropyrochlore | (H2O,◻)2Nb2(O,OH)6(H2O) |
| 4.DH.15 | 'Unnamed (Sb-analogue of Hydroxymanganopyrochlor)' | (Mn,Ca,Y)2(Sb,Ti)2O6(OH) |
| 4.DH.15 | Hydroxynatropyrochlore | (Na,Ca,Ce)2Nb2O6(OH) |
| 4.DH.15 | Hydrokenopyrochlore | (◻,x)2Nb2O6(H2O,Cs) |
| 4.DH.15 | Oxybismutomicrolite | (Bi1.33◻0.67)Σ2Ta2O6O |
| 4.DH.15 | Kenomicrolite | ◻2Ta2[O4(OH)2]◻ |
| 4.DH.15 | Fluornatromicrolite | (Na1.5Bi0.5)Ta2O6F |
| 4.DH.15 | 'Oxynatropyrochlore' | (Na,Ca,U)2Nb2O6(O,OH) |
| 4.DH.15 | Hydroxycalciopyrochlore | (Ca,Na,U,◻)2(Nb,Ti)2O6(OH) |
| 4.DH.15 | Fluorcalciopyrochlore | (Ca,Na)2(Nb,Ti)2O6F |
| 4.DH.15 | Oxycalciopyrochlore | Ca2Nb2O6O |
| 4.DH.15 | 'Fluorstrontiopyrochlore' | (Sr,◻)2Nb2(O,OH)6F |
| 4.DH.15 | Oxyplumbopyrochlore | Pb2Nb2O6O |
| 4.DH.15 | 'Fluorplumbopyrochlore' | (Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6F |
| 4.DH.15 | 'Bismutomicrolite (of Hogarth 1977)' | |
| 4.DH.15 | 'Bismutopyrochlore (of Chukanov et al.)' | (Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH) |
| 4.DH.15 | 'Kenoplumbopyrochlore' | (Pb,◻)Nb2O6(◻,O) |
| 4.DH.15 | Hydroxyplumbopyrochlore | (Pb1.5◻0.5)Nb2O6(OH) |
| 4.DH.15 | 'Stibiomicrolite (of Groat et al.)' | |
| 4.DH.15 | 'Oxyyttropyrochlore-(Y)' | (Y,◻)2Nb2O6O |
| 4.DH.15 | 'Fluorkenopyrochlore' | (◻,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F |
| 4.DH.15 | Hydroxycalciomicrolite | Ca1.5Ta2O6(OH) |
| 4.DH.15 | 'Strontiopyrochlore (of Hogarth 1977)' | (Sr,Ce,Ca)0.66(Nb,Fe)2(O,OH)7 |
| 4.DH.15 va | 'Alumotungstite' | ◻2W2O6(H2O) |
| 4.DH.15 | 'Oxycalciobetafite' | Ca2(Ti,Nb)2O6O |
| 4.DH.15 | 'Oxyuranobetafite' | (U,Ca,◻)2(Ti,Nb)2O6O |
| 4.DH.15 | Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F |
| 4.DH.15 | Oxycalciomicrolite | Ca2Ta2O6O |
| 4.DH.15 | Oxystannomicrolite | Sn2Ta2O6O |
| 4.DH.15 | Kenoplumbomicrolite | (Pb,◻)2Ta2O6(◻,OH,O) |
| 4.DH.15 | Oxynatromicrolite | (Na,Ca,U)2(Ta,Nb)2O6(O,F) |
| 4.DH.15 | Oxystibiomicrolite | (Sb3+,Ca)2Ta2O6O |
| 4.DH.15 | 'Hydromicrolite' | (H2O,◻)2Ta2(O,OH)6(H2O) |
| 4.DH.15 | 'Plumbomicrolite (of Hogarth 1977)' | |
| 4.DH.15 | Hydrokenomicrolite | (◻,H2O)2Ta2(O,OH)6(H2O) |
| 4.DH.15 | Hydroxykenoelsmoreite | (◻,Pb)2(W,Fe3+,Al)2(O,OH)6(OH) |
| 4.DH.15 va | 'Yttromicrolite (of Hogarth)' | (Ca,Y3+,U,Na)2-x(Ta,Nb,Ti,Fe3+)2O7 |
| 4.DH.15 | Hydroxykenopyrochlore | (◻,Ce,Ba)2(Nb,Ti)2O6(OH,F) |
| 4.DH.15 | Hydroxymanganopyrochlore | (Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) |
| 4.DH.20 | 'Cuproroméite' | Cu2Sb2(O,OH)7 |
| 4.DH.20 | Hydroxycalcioroméite | (Ca,Sb3+)2(Sb5+,Ti)2O6(OH) |
| 4.DH.20 | Bindheimite | Pb2Sb2O6O |
| 4.DH.20 | Hydroxyferroroméite | (Fe2+1.5◻0.5)Sb5+2O6(OH) |
| 4.DH.20 | Fluorcalcioroméite | (Ca,Na,◻)2Sb5+2(O,OH)6F |
| 4.DH.20 | Oxycalcioroméite | Ca2Sb2O6O |
| 4.DH.20 | Stetefeldtite | Ag2Sb2(O,OH)7 |
| 4.DH.20 | Stibiconite | Sb3+Sb5+2O6(OH) |
| 4.DH.20 | Monimolite | Pb2Sb5+2O7 |
| 4.DH.30 | Stefanweissite | (Ca,REE)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 |
| 4.DH.30 | Zirconolite | CaZrTi2O7 |
| 4.DH.30 | Laachite | (Ca,Mn)2Zr2Nb2TiFeO14 |
| 4.DH.30 | Nöggerathite-(Ce) | (Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 |
| 4.DH.35 | Liandratite | U(Nb,Ta)2O8 |
| 4.DH.35 | Petscheckite | UFe(Nb,Ta)2O8 |
| 4.DH.40 | Ingersonite | Ca3Mn2+Sb5+4O14 |
| 4.DH.45 | Pittongite | Na0.22(W,Fe3+)(O,OH)3 · 0.44H2O |
| 4.DH.50 | Tazzoliite | Ba4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x) |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Rosiaite
mindat.org URL:
https://www.mindat.org/min-7274.html
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References for Rosiaite
Reference List:
Hill, Roderick J. (1987) Structure of PbSb2O6 and its relationship to the crystal chemistry of PbO2 in antimonial lead-acid batteries. Journal of Solid State Chemistry, 71. 12-18 doi:10.1016/0022-4596(87)90136-8
Basso, Riccardo, Lucchetti, Gabriella, Zefiro, Liviο, Palenzona, Andrea (1996) Rosiaite, PbSb2O6, a new mineral from the Cetine mine, Siena, Italy. European Journal of Mineralogy, 8 (3) 487-492 doi:10.1127/ejm/8/3/0487
Roper, Adam J., Leverett, Peter, Murphy, Timothy D., Williams, Peter A. (2015) Stabilities of byströmite, MgSb2O6, ordoñezite, ZnSb2O6 and rosiaite, PbSb2O6, and their possible roles in limiting antimony mobility in the supergene zone. Mineralogical Magazine, 79 (3) 537-544 doi:10.1180/minmag.2015.079.3.03
Localities for Rosiaite
Showing 15 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
France | |
| Valerie GALEA-CLOLUS collection +2 other references |
| Favreau et al. (2024) | |
Germany | |
| Graf (1997) +1 other reference |
Hungary | |
| collector: Gábor Koller |
Italy | |
| Ciriotti et al. (2006) |
| Caboni et al. (2018) |
| Anthony et al. (1997) +1 other reference |
Norway | |
| Husdal (2021) |
Spain | |
| Rewitzer et al. (2020) |
| Mineralogía de la concesión San Rafael |
| issuu.com (n.d.) +1 other reference |
UK | |
| Rust (2022) |
| Ryback et al. (2001) |
USA | |
| Silver Coin Mine. Compact Disc. Paul ... |
|
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Tafone mine, Manciano, Grosseto Province, Tuscany, Italy