| 9ehceis ((PENTLANDITE and PYRRHOTITE)), $15 MINIMUM BID, Worthington, Ontario, Canada, 7.5 x 5 x 3.5 cm, Cabinet,, Phila Academy Specimen | |
 | Pentlandite is an iron nickel sulfide and Pyrrhotite is an iron sulfide. Cabinet, a second label is dated 1921. ex Philadelphia Academy of Science #19692. |
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