#heulandite

Heulandite

Heulandite is the name of a series of tecto-silicate minerals of the zeolite group. Prior to 1997, heulandite was recognized as a mineral species, but a reclassification in 1997 by the International Mineralogical Association changed it to a series name, with the mineral species being named:Heulandite-Ca Heulandite-Na Heulandite-K Heulandite-Sr Heulandite-Ba.

Tue 6th

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