Database of luminescent minerals 

MANGANOCUMMINGTONITE

Chemical formula: X Mn₂Mg₅Si₈O₂₂(OH)₂

Family: Silicates

Status: IMA-A

Crystal system : Monoclinic

Display mineral: NON

Luminescence:

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

No data

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.

Activator(s) and spectrum:

Activator(s): Mn²⁺ ,

No spectrum yet

Best localities for fluorescence (*):

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

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

Bibliographic reference for luminescence:

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

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

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

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