Constituent
- Name
- Schoepite
- IMA name
- Schoepite
- Class
- non-silicate mineral
- Compound type
- oxide-hydroxide
- Relevance
- main - major
- Arrangement
- single phase
- Mass fraction
- 1.0
- Formula
- (UO2)8O2(OH)12∙12(H2O)
- Chemical formula
- (UO2)8O2(OH)12•12(H2O)
- Elemental formula
- U8 O30 H36 (O-)12
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula UO2 H2O Mass fraction (%) 82.69 12.41
Strunz
- Class
- oxides - hydroxides - arsenites (04)
- Division
- uranyl hydroxides (04.G)
- Family
- without additional cations (04.GA)
- Code
- 04.GA.05
Dana
- Major class
- oxides and hydroxides (III)
- Class
- oxides containing uranium and thorium (05)
- Type
- with a cation charge of 6+ (AO3) and hydrated (05.02)
- Group
- Schoepite Group (05.02.01)
- Code
- 05.02.01.03
- Phase type
- crystalline
- Crystal system
- orthorhombic
- Crystal class
- dipyramidal
- Crystal class symbol
- mmm (D2h)
- Crystal spacegroup
- Pbca
- Texture
- polycrystalline
- Molar mass
- 2612.49 g/mol
- Density
- 4.8 g/cm3
- Refringence type
- biaxial
- Refringence sign
- negative
- Birefringence
- 0.045
- Refraction index nα
- 1.69
- Refraction index nβ
- 1.714
- Refraction index nγ
- 1.735
- Color
- yellow, lemon yellow, brownish yellow, amber
- Diaphaneity
- transparent to translucent
- Luster
- adamantine