7idceis ((CALCITE or SIDERITE on SULFIDE?)) Philadelphia Academy, $1 MINIMUM BID, no label, 5 x 4 x 4 cm, Miniature | |
I have several Philadelphia Academy specimens left from the lot I purchased from the Collectors Edge. With a great deal on 140 flats, several did not have labels. This one is #20942 and may be a sulfide species covered with several brown rhombs of Siderite. ex Philadelphia Academy of Natural Sciences. |