Database of luminescent Minerals

MANGANOCUMMINGTONITE

Chemical Formula: X Mn₂Mg₅Si₈O₂₂(OH)₂

Familly: Silicates

Status: IMA-A

Crystal System: Monoclinic

Mineral for Display: No

Luminescence:

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

Comments:

Material labelled  tirodite from the International Talc Company mine, Talcville, New York, USA (Segeler, 1961), has been shown to be manganocummingtonite by electron microprobe (by Mike Hawkins, curator at the NY State Museum mineral collection). See further discussions at: http://www.mindat.org/mesg-7-206424.html

Additional material labeled tirodite from the International Talc Company mine, Talcville, New York, USA, was confirmed to be anthophyllite by XRD performed by John Attard on a sample submitted by John Duck in April, 2012.

Accordingly, without confirmation, the identity of similar material may be either manganocummingtonite or anthophyllite. Visual identification or identification by fluorescent response is not possible.

Main Activator(s) and spectrum:

Most Common Activator: Mn²⁺

Best Locality for luminescence(*):

• International Talc Company Mine (Reynolds Mine), Talcville, St. Lawrence Co., New York, USA ;

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

Bibliographical Reference for luminescence:

Luminescence Reference on internet:

• http://www.mindat.org/mesg-7-206424.html

Mineralogical Reference on internet:

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

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

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