Database of luminescent minerals 

TYUYAMUNITE

DOUBTFUL FLUORESCENCE but sometimes cited in luminescence literature

Chemical formula: Ca(UO₂)₂(V₂O₈) 5-8H₂O

Family: Phosphates, Arseniates, Vanadates

Status: IMA-GP

Crystal system : Orthorhombic

Display mineral: NON

Luminescence:

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Phosphorescence (in the common sense of the term) observable with the naked eye:

No data

Comments:

Visually indistinguishable from metatyuyamunite and other uranyl vanadates. Tyuyamunite easily dehydrates in dry atmosphere to metatyuyamunite

Weakly to not fluorescent yellow-green in UV, although may be intergrown with bright fluorescent species (see mindat.org)

Observation of pure tyuyamunite specimen is difficult.

Activator(s) and spectrum:

Activator(s): (UO₂)²⁺ (ion Uranyle) intrinsèque ,

No spectrum yet

Best localities for fluorescence (*):

(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence

Bibliographic reference for luminescence:

• The Henkel Glossary of Fluorescent Minerals, Dr. Gerhard Henkel, Published by the FMS, 1989 ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

  http://www.mindat.org/show.php?name=Tyuyamunite

  http://webmineral.com/data/Tyuyamunite.shtml

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