Porpezite

Where it forms, where it's found

9recorded occurrences

Source · OpenStreetMap

Physical

Lustre: metallic
Colour: Tan to light brown
Streak: yellow
Cleavage: none

Optical

Luminescence: none

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
79AuGold Gold 1 196.967 196.967
64.92%
46PdPalladium Palladium 1 106.420 106.420
35.08%
Total 303.387 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
79AuGold	Gold	1	196.967	196.967	64.92%
46PdPalladium	Palladium	1	106.420	106.420	35.08%
	Total	303.387	100.00%

Synonyms

Porpezit
Porpezita

Literature, links & citation

Citations

1892Dana, Edward Salisbury; Dana, James Dwight (1892) A System of Mineralogy (6th ed.). John Wiley & Sons, Inc.
1944Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.
2015Roeser, Hubert Mathias Peter, Schürmann, Kay (2015) Curiosidades na nomenclatura mineralógica: Porpezita do Brasil. Terrae Didatica, 11 (1) 14-20 doi:10.20396/td.v11i1.8637306DOI: 10.20396/td.v11i1.8637306

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Porpezite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/porpezite-10923},
  note      = {Accessed 2026-05-11}
}