475-09fdceis ((PURPURITE)), $10 MINIMUM BID, Pennington County, South Dakota, 6.5 x 4 x 3 cm, Miniature, | |
A Philadelphia Academy specimen of South Dakota Purpurite which is from the Vaux collection: Vauxite named for him. ex Academy of Natural Sciences of Philadelphia #19949. ex William S Vaux collection. |