| 675 09fdceis ((2 HORNSTONE aka CHERT)), $5 MINIMUM BID, Hot Springs County, Arkansas, 8 x 5 x 4 cm, Cabinet | |
 | Here are 2 specimens of Hornstone aka Chert from the Academy of Natural Sciences of Philadelphia specimen #2649, and early specimen number. ex Dr G W Lawrence. Grey massive Chert from Arkansas. |
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