Masuyite | |
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![]() Orange Masuyite coating crystals of cubic uraninite (to about 1 cm). Shinkolobwe mine, the type locality, Democratic Republic of the Congo. | |
General | |
Category | Oxide minerals |
Formula (repeating unit) | Pb[(UO2)3O3(OH)2]·3H2O |
IMA symbol | Msy[1] |
Strunz classification | 4.GB.35 |
Crystal system | Monoclinic |
Crystal class | Domatic (m) (same H-M symbol) |
Space group | Pn |
Unit cell | a = 13.98 Å, b = 12.11 Å, c = 14.2 Å; Z = 2 |
Identification | |
Optical properties | Biaxial (-) |
Refractive index | nα = 1.785 nβ = 1.895 nγ = 1.915 |
Birefringence | δ = 0.130 |
2V angle | Measured: 50° , calculated: 44° |
Dispersion | extreme |
Other characteristics | ![]() |
References | Masuyite on Mineralienatlas[2] |
Masuyite is a uranium/lead oxide mineral with formula Pb[(UO2)3O3(OH)2]·3H2O.[3]
Masuyite was first described in 1947 for an occurrence in Katanga and named to honor Belgian geologist Gustave Masuy (1905–1945).[4]
See also
[edit]References
[edit]- ^ 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.
- ^ Mineralienatlas
- ^ Webmineral
- ^ Handbook of Mineralogy