Tourmaline in Muscovite Bob Ingersoll Mine, Keystone, Keystone District, Pennington Co., South Dakota 6.87cm x 5.22cm x 1.62cm Ex. Ken Hogan Collection

Description/Interesting Notes: A terrific example of tourmaline from this seldom referenced locality!!! This specimen consists of a thick book of muscovite crystals that hosts a pair of intersecting tourmaline crystals!!! The tourmaline crystals are lustrous and have deep green color!!! These old South Dakota tourmaline specimens are seldom seen on the market!!! The pics hardly do it justice!!! Good luck and be sure to check out my other exciting mineral auctions on ebay!!! We are constantly acquiring new exciting specimens & old collections!!! BE THE FIRST TO FIND OUT WHAT'S NEW & CHECK OUT OUR Ebay "About Me" page!!! ALSO, CHECK BACK OFTEN BECAUSE WE WILL BE ADDING MORE UPDATES AND SPECIMENS IN THE UPCOMING WEEKS!!!

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