Database of luminescent Minerals


Chemical Formula: Zn2(AsO4)(OH)

Familly: Phosphates, Arseniates, Vanadates

Status: IMA-GP

Crystal System: Orthorhombic

Mineral for Display: Yes

Associated names (luminescent varieties, discredited names, synonymes etc.):  cupro-adamitemanganoan-adamite


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Green MediumOften
Mid waves (320 nm):      Green
Short Waves (254 nm):      Green StrongOften
Other colors LW:          
Greenish , Greenish white ,
Other colors MW:               
Yellowish Green , Greenish , Greenish white ,
Other colors SW:               
Yellowish Green , Greenish , Greenish white ,

Daylight Picture

Adamite, Mapimi Mexique.

Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author

Short Waves Pictures (254nm)

Adamite, Mapimi Mexique,
OC (254 nm).
Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author


Galerie de photos:


     To the gallery (13 images in the gallery)

Phosphorescence (in the common meaning of the term) seen by naked eye:

No phosphorescence seen by naked eye whatever the type of UV


Adamite is a classical fluorescent mineral since the discovery in 1946 of large esthetical fluorescent samples in the Ojuela Mine (Mexico).

The rarely seen Chinese adamite in limonitic matrix coming from the Dachang Sn-polymetallic ore field, Nandan County, Hechi Prefecture, Guangxi Zhuang Autonomous region looks like Ojuela specimens. The clear gemmy crystals fluoresce bright bluish-white in LW UV and the green cuprian Adamite fluoresces bright green LW. The SW response is similar for both, in a subdued green color. The Adamite is very short lived phosphorescent.

Cupro- and manganoan-adamite are also sometime fluorescent but usually not as bright as pure adamite..

Main Activator(s) and spectrum:

Most Common Activator: (UO2)2+ (Uranyl ion) as impurities

Peaks in the spectrum (nm):

UO22+: (496), 508, 513, 529, (539), (550), 553, (560), (578)

ADAMITE, Mapimi, Mexique. Excitation: laser 405nm. Col. G. Barmarin; Spectre: G. Barmarin

Comments on activators and spectra:

Lifetime: 50μs

Best Locality for luminescence(*):

(*)Data are not exhaustive and are limited to the most important localities for fluorescence

Bibliographical Reference for luminescence:

Luminescence Reference on internet:

Mineralogical Reference on internet:

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Note: While all due attention has been paid to the implementation of the database, it may contain errors and/or accidental omissions. By nature, the database will always be incomplete because science always evolves according to new analysis.
A request providing no result means only that no such reference exists in the database, but it does not mean that what you are looking for does not exist, just not to our knowledge. If you think you have found an error or omission, please let us know via the contact page being sure to cite the source of information.


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