Database of luminescent minerals 

GAULTITE

Chemical formula: Na₄[Zn₂Si₇O₁₈] 5H₂O

Family: Silicates

Status: IMA-A

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:

I (Manuel Robbins) reported on a mineral from Mont Saint-Hilaire then known only under the temporary designation UK84. It has now been given the name Gaultite. It is a sodium zinc silicate hydrate. As reported in the book (see bibliography), fluorescence is bright green under SW. It was found as small colorless or mauve crystals to 0.05mm in a sodalite cavity at a contact between hornfels and sodalite syenite. (citation of Manuel Robbins)

Activator(s) and spectrum:

No spectrum yet

Best localities for fluorescence (*):

• Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;

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

Bibliographic reference for luminescence:

• Fluorescence: Gems and Minerals Under Ultraviolet Light, Manuel Robbins, 1994, Geoscience Press, ISBN 0-945005-13-X ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

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

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

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