Heinrichite

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Heinrichite
Abernathyite, Heinrichite-497484.jpg
Green Heinrichite crystals and pale yellow Abernathyite crystals
General
CategoryPhosphate mineral
Formula
(repeating unit)
Ba(UO2)2(AsO4)2·10H20
Strunz classification8.EB.05
Dana classification40.2a.9.1
Crystal systemMonoclinic
Crystal classStrunz
Unit cella = 7.155 Å, b = 7.134 Å, c = 21.29 Å β = 104.171
Identification
ColorPale yellow, pale green
StreakPale yellow
Optical propertiesuniaxial (−)
Refractive indexnω = 1.605 nε = 1.573
Birefringence0.032
Ultraviolet fluorescenceYellow-green in longwave and shortwave UV[1]
Other characteristicsRadioactive.svg Radioactive
References[1]

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.[2] Because of its uranium content, the mineral is radioactive.[2]

References[edit]

  1. ^ a b "Heinrichite". Mindat. Retrieved November 20, 2020.
  2. ^ a b "Heinrichite". Mindat. Retrieved November 20, 2020.