F828 Sample ID F828 • Cabinet X Fish Fossil Concretion 11.489cm W x 11.254cm H x 0.627cm D • 82g Sample TypeFossilFossil TypeTrace/IchnofossilsMohs Hardness 3 DomainKingdomPhylumClass OrderFamilyGenusSpecies Distribution/Period, Habitat Preservation Orig. Material? Relief Mineral Comp. The rock is a near perfect flat circle with an fish fossil nearly in the middle, the kind of fish is unknown. The rock is a concretion, tan in color. Description of Mohs scale here