Pumpellyite Var. Chlorastrolite
Pumpellyite Var. Chlorastrolite from Isle Royale, Lake Superior, Michigan
Collection John Betts - Fine Minerals
Description Nine waterworn nodules of green Pumpellyite-(Mg). This variety is known as Chlorastrolite and have a distinct, chatoyant pattern that resembles a turtle back. These are found on the beaches of Isle Royale National Park in Lake Superior.
Locality Isle Royale, Lake Superior, Michigan
Dimensions 4-5 mm nodules
Specimen Grade B
Photograph © www.johnbetts-fineminerals.com - All Rights Reserved.

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