UM1999-18-OH:Pd
Valid as an unnamed mineral
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Formula:
Pd(OH)2 or Pd(OH)2 · nH2O
Probably formed by replacement of a Pd-bearing precursor mineral rather than a precipitation from a fluid.
One of many Pd-O compounds, most of which are however unnamed. Compare palladinite.
Co-described with UM1999-14-O:HPd. Also associates with sperrylite, isomertieite, and michenerite.
Possibly the first PGE purely hydroxide mineral. Compare UM2005-19-O:IrOs, UM2005-20-OH:CuIrOsRh, UM2005-21-OH:FeIrPtRh, and UM2005-22-OH:IrPtRh.
Electron microprobe data, wt.% (for the two unnamed species):
Pd 67.85, 50.42
Pt 0.78, 0.00
Fe 1.36, 2.23
Ni 1.60, 1.51
Cu 4.84, 2.83
Bi 1.41, 0.89
S 0.13, 0.06
O 23.29, 40.02
total 101.26, 97.96
One of many Pd-O compounds, most of which are however unnamed. Compare palladinite.
Co-described with UM1999-14-O:HPd. Also associates with sperrylite, isomertieite, and michenerite.
Possibly the first PGE purely hydroxide mineral. Compare UM2005-19-O:IrOs, UM2005-20-OH:CuIrOsRh, UM2005-21-OH:FeIrPtRh, and UM2005-22-OH:IrPtRh.
Electron microprobe data, wt.% (for the two unnamed species):
Pd 67.85, 50.42
Pt 0.78, 0.00
Fe 1.36, 2.23
Ni 1.60, 1.51
Cu 4.84, 2.83
Bi 1.41, 0.89
S 0.13, 0.06
O 23.29, 40.02
total 101.26, 97.96
Unique Identifiers
Mindat ID:
7970
Long-form identifier:
mindat:1:1:7970:5
GUID
(UUID V4):
(UUID V4):
cb8d6661-8daf-45f4-909b-00fc0d8b7ef9
Classification of UM1999-18-OH:Pd
IMA status notes:
Unnamed (probably valid)
Chemical Properties of UM1999-18-OH:Pd
Formula:
Pd(OH)2 or Pd(OH)2 · nH2O
Elements listed:
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.
References for UM1999-18-OH:Pd
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
McDonald, I., Ohnenstetter, D., Ohnenstetter, M., Vaughan, D.J. (1999): Palladium oxides in ultramafic complexes near Lavatrafo, western Andriamena, Madagascar. Mineral. Mag.: 63: 345–352; in: Jambor, J.L., Roberts, A.C. (2000): New mineral names. American Mineralogist: 85: 265
Smith, D.G.W., Nickel, E.H. (2007): A System of Codification for Unnamed Minerals: Report of the SubCommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification (2012 Update). Canadian Mineralogist: 45: 983-1055; http://nrmima.nrm.se (2016) (Update: 2012-01)
Internet Links for UM1999-18-OH:Pd
mindat.org URL:
https://www.mindat.org/min-7970.html
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Please feel free to link to this page.
Mineral Dealers:
Localities for UM1999-18-OH:Pd
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).
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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Madagascar | |
| [AmMin 85:265] |