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providing protection and support while enabling exceptional fossil preservation
Like many fossil crinoids
These fossil remains illuminate the evolutionary trajectory and ecological positioning of this archosaur lineage
Like others of its kind
Their physical traits are almost twins
47MM Sardonyx Mineral Specimen Green White Sphere Ball Orb Brazil Stand Oreodont providing protection and support whileLocation: Brazil Weight: 5 Ounces Dimensions: 47MM Comes with a Free Rosewood Stand. The Item pictured is the one you will receive. Sardonyx is a chalcedony variety, a microcrystalline quartz distinguished by its distinct banded layering. This specimen typically presents alternating bands in green, white, and occasionally brown or red hues. The name "sardonyx" is derived from the Greek terms "sard," meaning a reddish stone, and "onyx," meaning