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Trilobites were early marine arthropods that flourished all over the world from around 570 million years ago until their extinction some 240 million years ago
A sturdy keyring set with a half ammonite to its centre
An Orthoceras fossil (400 million years old)
minimum size of the trilobite is 6cm x 3cm
The black-backed keyring lets the colours of the ammonite to really resonate
Iron Pyrite Crystals meg tooth Trilobites were early marine arthropodsExceptional specimens of individual iron pyrite cubes. Also known as fools gold, these mind blowing, naturally cubic pyrite crystals have formed in a calcite limestone matrix. Who said there were no straight lines in nature?! From La Rioja, Navajn, Spain. Pyrite dimensions: 1cm x 1cmx 1cm. Matrix 3cm x 3cm Measurements are approximate and the minimum size you should expect your item to be. Some specimens will have more than one piece of pyrite in the
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