This is a matched pair of ammonite halves, 0.6 oz (total for the pair) and each 1.2” by 0.85” by 0.35” (at the wide end). The outside has been polished and is lovely shades of brown, humble and belying the splendor within. Inside, the ammonite chambers are hollow, yet if you check them with a 10X loupe, you’ll see an array of well-formed sparkling teeny crystals of calcite, all arranged in a spectacular spiral befitting this ancient gem from the sea. Interestingly, one half of the shell shows a “chain” connecting the chambers yet the other side does not! They are from Madagascar.

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Lovely, Matched Pair of Ammonite Halves - Eternal Spiral