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Sample n° 13944

Minerals found in the sample

Mineral	Formula	Category	Subcategory	Importance
MASUYITE	Pb(UO2)3O3(OH)2•3H2O	oxides and hydroxides	-	major
RICHETITE	(Fe3+,Mg)xPb2+8,6(UO2)36O36(OH)24•41H2O	oxides and hydroxides	-	major
SAYRITE	Pb2(UO2)5O6(OH)2•4H2O	oxides and hydroxides	-	major
BECQUERELITE	Ca(UO2)6O4(OH)6•8H2O	oxides and hydroxides	-	minor
RUTHERFORDINE	(UO2)(CO3)	carbonates	-	minor
URANINITE	UO2	oxides and hydroxides	-	minor
URANOPHANE	Ca(UO2)2(SiO3OH)2•5H2O	nesosilicates	-	minor

Description

Description: sample with one red sayrite crystal, red-orange masuyite crystals, black richetite plates, amber-coloured becquerelite laths, uranophane needles

Information: holotype of sayrite (IMA Catalogue of Type Mineral Specimens) // Piret, P., Deliens, M., Piret-Meunier, J. & Germain, G., 1983. La sayrite, Pb2[(UO2)O6(OH)2].4H2O, nouveau minéral; propriétés et structure cristalline. Bulletin de Minéralogie 106, 299-304. // Plásil, J., 2020. Crystal structure of uranyl-oxide mineral wölsendorfite revisited. Bulletin Mineralogie Petrologie 28, 322-330.

Origin

• Country: Congo (RDC)
• Region: Katanga
• Locality: Shinkolobwe

Specification

• Donors: van Dooren
  Donation year: 1982
• Sampling year:
  Registration date:
• Quantity: 1
  Size: 2 x 1 cm

• Dimension code 1>2>3: 3
  Quality code 1>2>3: 1
• Holotype: yes
  Paratype: no
  Radioactive: yes
• Thin section: no
  Chemical analysis: no
  X-Ray spectra: yes

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