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Paseroite

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About PaseroiteHide

Prof. Marco Pasero
Formula:
PbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38
Colour:
Dark grey to black
Lustre:
Sub-Metallic
Hardness:
6 - 6½
Specific Gravity:
4.315 (Calculated)
Crystal System:
Trigonal
Name:
Named for Professor Marco Pasero (b. 1958) in honour of his contributions to mineralogy and crystallography in general, and especially in recognition of his contributions to Italian mineralogy. Professor Pasero is a co-author of the recent book Italian Type Minerals (Ciriotti et al., 2009) and has described 12 new minerals from Italy, including 2 new members of the crichtonite group, dessauite-(Y) and gramaccioliite-(Y). He has also acted as the member for Italy on the IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) and is currently the Vice-Chairman.
The V5+ analogue of senaite.




Classification of PaseroiteHide

Approved
Approval Year:
2011
First Published:
2012

Physical Properties of PaseroiteHide

Sub-Metallic
Transparency:
Opaque
Colour:
Dark grey to black
Streak:
Black
Hardness:
6 - 6½ on Mohs scale
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
4.315 g/cm3 (Calculated)

Optical Data of PaseroiteHide

Type:
Anisotropic
Anisotropism:
Without characteristic rotation tints
Bireflectance:
Weak
Reflectivity:
471.1nmR1=18.2%R2= 18.4%
548.3nmR1=17.7%R2= 17.9%
586.6nmR1=17.3%R2= 17.6%
652.3nmR1=16.8%R2= 17.0%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 18.4%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Greyish
Internal Reflections:
None observed
Pleochroism:
Non-pleochroic

Chemical Properties of PaseroiteHide

Formula:
PbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38
IMA Formula:
Pb(Mn2+,◻)(Fe3+,◻)2(V5+,Ti4+,◻)18O38

Crystallography of PaseroiteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 10.3894(5) Å, c = 20.8709(8) Å
Ratio:
a:c = 1 : 2.009
Unit Cell V:
1950.98 ų
Z:
3
Morphology:
Elongated scalenohedral crystals between 50 and 100 µm in length. Forms observed: {001} and {102}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.417 (100)
3.012 (21)
2.896 (61)
2.858 (36)
2.765 (27)
2.260 (85)
2.149 (65)
1.809 (57)

Type Occurrence of PaseroiteHide

General Appearance of Type Material:
Isolated submetallic, dark grey to black, elongated scalenohedral crystals up to 100 um in length.
Place of Conservation of Type Material:
Museo di Storia Naturale, Sezione di Mineralogia e Litologia, Universita di Firenze, Firenze, Italy, catalogue number 3111/I, and Museo Regionale di Scienze Naturali, Torino, catalogue number 15900.
Geological Setting of Type Material:
Found in fossil wood
Associated Minerals at Type Locality:
Reference:
Mills, S.J., Bindi, L., Cadoni, M., Kampf, A.R., Ciriotti, M.E., Ferraris, G. (2012) Paseroite, PbMn2+(Mn2+,Fe2+)2(V5+,Ti,Fe3+,☐)18O38, a new member of the crichtonite group. European Journal of Mineralogy: 24: 1061-1067.

Synonyms of PaseroiteHide

Relationship of Paseroite to other SpeciesHide

Other Members of this group:
AlmeidaitePbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O)Trig. 3 : R3
Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig. 3 : R3
Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig.
Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38Trig. 3 : R3
Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3
LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3
Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.
Mapiquiroite(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38Trig. 3 : R3
Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38Trig.
Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38Trig. 3 : R3
SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.
UM1987-03-O:FePbTiU~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38Trig. 3 : R3
Unnamed (HBU UK-4)NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38Trig. 3 : R3

Common AssociatesHide

Associated Minerals Based on Photo Data:
Volborthite1 photo of Paseroite associated with Volborthite on mindat.org.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for PaseroiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mills, S.J., Bindi, L., Cadoni, M., Ciriotti, M.E. and Kampf, A.R. (2011) Paseroite, IMA 2011-069. CNMNC Newsletter No. 11, December 2011, page 2891. Mineralogical Magazine: 75: 2887-2893.
Mills, S.J., Bindi, L., Cadoni, M., Kampf, A.R., Ciriotti, M.E., Ferraris, G. (2012) Paseroite, PbMn2+(Mn2+,Fe2+)2(V5+,Ti,Fe3+,☐)18O38, a new member of the crichtonite group. European Journal of Mineralogy: 24: 1061-1067.

Internet Links for PaseroiteHide

Localities for PaseroiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Italy (TL)
 
  • Liguria
    • Genova Province
      • Ne
        • Graveglia Valley
Mills, S.J., Bindi, L., Cadoni, M., Ciriotti, M.E. and Kampf, A.R. (2011) Paseroite, IMA 2011-069. CNMNC Newsletter No. 11, December 2011, page 2891; Mineralogical Magazine, 75, 2887-2893.; Mills, S.J., Bindi, L., Cadoni, M., Kampf, A.R., Ciriotti, M.E., Ferraris, G. (2012): Paseroite, PbMn2+(Mn2+,Fe2+)2(V5+,Ti,Fe3+,☐)18O38, a new member of the crichtonite group. European Journal of Mineralogy, 24, 1061-1067.
Mineral and/or Locality  
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