Heinrichite
Appearance
Heinrichite | |
---|---|
![]() Green heinrichite crystals and pale yellow abernathyite crystals | |
Allgemein | |
Kategorie | Phosphate mineral |
Formula (repeating unit) | Ba(UO2)2(AsO4)2·10H20 |
IMA symbol | Hrc[1] |
Strunz classification | 8.EB.05 |
Dana classification | 40.2a.9.1 |
Crystal system | Monoclinic |
Crystal class | Strunz |
Unit cell | a = 7.155 Å, b = 7.134 Å, c = 21.29 Å β = 104.171 |
Identification | |
Color | Pale yellow, pale green |
Streak | Pale yellow |
Optical properties | uniaxial (−) |
Refractive index | nω = 1.605 nε = 1.573 |
Birefringence | 0.032 |
Ultraviolet fluorescence | Yellow-green in longwave and shortwave UV[2] |
Other characteristics | ![]() |
References | [2] |
Heinrichite is a monoclinic-prismatic containing arsenic, barium, hydrogen, oxygen, and uranium. The mineral is named after Eberhardt William Heinrich (1918–1991) who first noted it in 1958 in the U.S. State of Oregon.
Description
[edit]Heinrichite is radioactive pale green, pale yellow mineral. Heinrichite fluoresces light-green in longwave and shortwave ultraviolet.[3] Because of its uranium content, the mineral is radioactive.[3]
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.
- ^ a b "Heinrichite". Mindat. Archived from the original on November 28, 2020. Retrieved November 20, 2020.
- ^ a b "Heinrichite". Mindat. Archived from the original on November 28, 2020. Retrieved November 20, 2020.