Chemical Formula: (UO2)8(SO4)(OH)14 13H2O
Familly: Sulfates
Status: IMA-A
Crystal System: Monoclinic
Mineral for Display: No
UV Type | Main color | Intensity | Observation Frequency |
---|---|---|---|
Long Waves (365nm): | Yellow | Mid waves (320 nm): | Yellow | Short Waves (254 nm): | Yellow |
Other colors LW: | Greenish Yellow , | ||
Other colors MW: | Greenish Yellow , | ||
Other colors SW: | Greenish Yellow , |
A uranyl sulfate hydrate, found in small yellow crystals, this mineral fluoresces yellow under SW and LW. The locality is in Bohemia, the Czech republic. Am Min 82 Associated (mixed) with uranopilite in coating at Jachymov Mine but easy to distinguish via UV-SW illumination by his significantly weaker fluorescent response than uranopilite. (Jeff Weissman)
Most Common Activator: (UO2)2+ (Uranyl ion) intrinsic
No spectrum for the moment(*)Data are not exhaustive and are limited to the most important localities for fluorescence
http://www.mindat.org/show.php?name=Jachymovite
http://webmineral.com/data/Jachymovite.shtml
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