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Shannonite

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About ShannoniteHide

04162320014946658136506.jpg
David Shannon
Formula:
Pb2O(CO3)
Colour:
White
Lustre:
Waxy
Hardness:
3 - 3½
Crystal System:
Orthorhombic
Name:
Named in honor of David Shannon (18 December 1942, Moline, Illinois, USA - 2 January 2004, Mesa, Arizona, USA), prolific Arizona mineral collector and dealer. He helped collect the first specimens of the mineral.
A lead oxycarbonate that can form naturally under highly oxidising conditions, but also from heating cerussite (e.g., during fire-setting methods used in ore extraction underground; during mine fires).

Chemically related to grootfonteinite and UM1995-03-CO:Pb.


Classification of ShannoniteHide

Approved
5.BE.05

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
E : With Pb, Bi

Physical Properties of ShannoniteHide

Transparency:
Opaque
Colour:
White
Streak:
White
Hardness:
3 - 3½ on Mohs scale

Optical Data of ShannoniteHide

Type:
Biaxial (+)
RI values:
nα = 1.642 nβ = 1.645 nγ = 1.654
2V:
Measured: 52° , Calculated: 62°
Max Birefringence:
δ = 0.012
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak

Chemical Properties of ShannoniteHide

Formula:
Pb2O(CO3)

Crystallography of ShannoniteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 9.29 Å, b = 9 Å, c = 5.13 Å
Ratio:
a:b:c = 1.032 : 1 : 0.57
Unit Cell V:
428.92 ų (Calculated from Unit Cell)

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014550ShannoniteKrivovichev S V, Burns P C (2000) Crystal chemistry of basic lead carbonates. I. Crystal structure of synthetic shannonite, Pb2O(CO3) Mineralogical Magazine 64 1063-10682000synthetic0293
CIF Raw Data - click here to close

Type Occurrence of ShannoniteHide

Synonyms of ShannoniteHide

Other Language Names for ShannoniteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Shannonite associated with MiniumPb3O4
1 photo of Shannonite associated with LithargePbO

Related Minerals - Nickel-Strunz GroupingHide

5.BE.XAbellaiteNaPb2(CO3)2(OH)Hex. 6mm : P63mc
5.BE.10HydrocerussitePb3(CO3)2(OH)2Trig. 3m (3 2/m) : R3m
5.BE.15PlumbonacritePb5O(OH)2(CO3)3Trig. 3m (3 2/m) : P3c1
5.BE.20PhosgenitePb2CO3Cl2Tet. 4/mmm (4/m 2/m 2/m) : P4/mbm
5.BE.25Bismutite(BiO)2CO3Orth. mm2 : Imm2
5.BE.30KettneriteCaBiCO3OFOrth. mmm (2/m 2/m 2/m)
5.BE.35BeyeriteCa(BiO)2(CO3)2Orth. mmm (2/m 2/m 2/m) : Immm

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 ShannoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Roberts, A. C., Stirling, J. A. R., Carpenter, G. J. C., Criddle, A. J., Jones, G. C., Birkett, T. C. & Birch, W. D. (1995) Shannonite, Pb2OCO3, a new mineral from the Grand Reef mine, Graham County, Arizona, USA. Mineralogical Magazine: 59: 305-310.
Jambor, J.L., Pertsev, N.N., Roberts, A.C. (1996) New mineral names. American Mineralogist: 81: 249-254.
Krivovichev, S.V., Burns, P.C. (2000) Crystal chemistry of basic lead carbonates. I. Crystal structure of synthetic shannonite, Pb2O(CO3). Mineralogical Magazine: 64: 1063-1068.

Internet Links for ShannoniteHide

Localities for ShannoniteHide

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.
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill district
        • Broken Hill
          • Broken Hill South Mine (BHS Mine; South Mine)
Australian Min. 3:1 (1997)
France
 
  • Grand Est
    • Haut-Rhin
      • Colmar-Ribeauvillé
        • Ste Marie-aux-Mines
U. Kolitsch (1997): New mineral occurrences from some localities in the Vosges, France: Triembach, Bluttenberg and Val d'Ajol. Aufschluss 48 (2), 65-91. (in German)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Breisgau-Hochschwarzwald
        • Badenweiler
          • Badenweiler Pb mining district
            • Sehringen
Schlomann, C. and Steen, H. (1990) Neue Mineralfunde aus dem Bergbaugebiet von Badenweiler im Südschwarzwald. Lapis, 15 (12), 13-20; 50. (in German)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
[MinMax website]; Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German). [identification announced; no description given yet]
          • Agios Konstantinos (Kamariza)
            • Kamariza mines (Kamareza mines)
LAPIS 24 (7/8) 1999; Wendel, W. and Markl, G. (1999) Lavrion: Mineralogische Klassiker und Raritäten für Sammler. LAPIS 24 (7/8):34-52
          • Lophos
            • Agrileza mines
Rieck, B., Kolitsch, U., Voudouris, P., Giester, G. and Tzeferis, P. (2018): Weitere Neufunde aus Lavrion, Griechenland. Mineralien-Welt 29 (5), 32-77 (in German).
USA (TL)
 
  • Arizona
    • Graham Co.
      • Aravaipa Mining District
        • Santa Teresa Mountains
          • Klondyke
            • Grand Reef Mountain
              • Laurel Canyon
Roberts, A.C., J.A.R. Stirling, G.J.C. Carpenter, A.J. Criddle, G.C. Jones, T.C. Birkett, and W.D. Birch (1995) Shannonite, Pb2OCO3, a new mineral from the Grand Reef Mine, Graham County, Arizona, USA. Mineralogical Magazine: 59: 304-310.
    • Maricopa Co.
      • Osborn Mining District
        • Tonopah
          • Belmont Mountain
Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 8.
    • Pinal Co.
      • Superior Mining District
        • Superior
          • Picketpost Mountain area
Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 8.
 
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