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Rainbow Lattice Sunstone

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Well this is lucky. Apparently for this FossilFriday I’m starting with ammonites in stuff.

This is a look at one of our favourite ammonites, prior to the outer matrix being polished. These ‘Cannon ball’ nodules (rocks) are thought to be exclusive to the Yorkshire Coast, found nowhere else in the world. They rarely contain fossils, but when they do, they typically contain an Eleganticeras sp. ammonite. This fossil here is featured as found. When prepared, the outer pyrite coating of the nodule will be polished, to achieve a golden mirror effect.

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Kilogram scale book of mica!

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Siderite, Pyrite and Chalcopyrite included Quartz

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25 lb Uruguayan Amethyst

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This is some serious amethyst. Color is caused by radiation attacking quartz over millions of years.