Chlorargyrite & Chalcopyrite (Green Horn Silver) Silver Islet mine, Silver Islet, Sibley Township, Thunder Bay District, Ontario, Canada 9.14cm x 6.7cm x 3.23cm Ex. Dr. P. A. Foster Collection

Description/Interesting Notes: An unusual, old time example of chalcopyrite and chlorargyrite known as "green horn silver" from Canada!!! This specimen consists of an unusual admixture of altered chalcopyrite and chlorargyrite known as "green horn silver"!!! The "green horn silver" is present as significant greenish tan masses comprising a portion of the specimen!!! The material appears to be a combination of weathered chalcopryite and chlorargyrite in a very fine grained, clay-like mass!!! This specimen retains an old label from the collection of P.A. Foster MD, as well as an old dealer label (locality noted as "Silver Island" Mine) and a previously affixed label as well!!! Unusual old time material!!! The pics hardly do it justice!!! Must be seen in person to be fully appreciated!!! Good luck and be sure to check out my other exciting mineral auctions on ebay!!! STAY TUNED!!! MORE AUCTIONS WILL BE ADDED MONDAY NIGHT FOR A SPECIAL 3-DAY AUCTION, ENDING THURSDAY MARCH 31st!!!

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