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mikeharrisonfossils Just look 👀 at the amazing colours these calcite proms display in the afternoon sun ☀️ WOW!!! such beauty! hidden away in ugly grey stones, waiting a staggering 195,000,000 years for their release! These jurassic treasures "popped" off the stone as I was splitting them down.
Calcite grew in the open space in these ammonites and then once the ammonite shell popped off, the crystalline ammonite was revealed.
Source: instagram.com