Fourmarierite

Fourmarierite
General
CategoryOxide minerals
Formula
(repeating unit)
Pb(UO
2
)
4
O
3
(OH)
4
•4H
2
O
IMA symbolFmr[1]
Strunz classification4.GB.25
Crystal systemOrthorhombic
Crystal classPyramidal (mm2)
H-M Symbol: (mm2)
Space groupBb21m
Identification
ColorRed, golden-red, brown
CleavageOn {001}, perfect
Mohs scale hardness3 - 4
LusterAdamantine
DiaphaneityTransparent
Density6.046 g/cm3
Other characteristics Radioactive

Fourmarierite is a secondary uranium-lead mineral. It was named for the Belgian geologist Paul Fourmarier (1877–1970). Its chemical formula is Pb(UO
2
)
4
O
3
(OH)
4
•4H
2
O
.[2]

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ "Fourmarierite Mineral Data". webmineral.com. Retrieved 15 May 2012.