AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from South Dakota > Siderophyllite-Polylithionite var. Zinnwaldite

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Siderophyllite-Polylithionite var. Zinnwaldite from Keystone District, Pennington County, South Dakota

 
Siderophyllite-Polylithionite var. Zinnwaldite from Keystone District, Pennington County, South Dakota

Siderophyllite-Polylithionite var. Zinnwaldite from Keystone District, Pennington County, South Dakota

Siderophyllite-Polylithionite var. Zinnwaldite from Keystone District, Pennington County, South Dakota

DESCRIPTION:No. 29067
Mineral:Siderophyllite-Polylithionite var. Zinnwaldite
Locality:Keystone District, Pennington County, South Dakota
Description:Rick specimen composed entirely of yellow zinnwaldite mica crystals. Zinnwaldite is a series name for lithium-rich siderophyllite to polylithionite and the exact species is unknown, and may vary through the specimen. Ex. A. Lincoln Sherk II, MD. (1896-1970)
Overall Size:11x6x5 cm
Crystals:1-18 mm
Archived: For reference only

 

 

 

 

 

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