Masuyite
(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
RadioactiveReferences Masuyite on Mineralienatlas[2]
(same H-M symbol)
c = 14.2 Å; Z = 2
![](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Radioactive.svg/25px-Radioactive.svg.png)
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
- Classification of minerals
- List of minerals
References
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