Fossilized Crinoid Stem Segment
Crinoid (Phylum Echinodermata, Class Crinoidea)
sedimentary
Category
Sedimentary (Fossilized Organic Remain)
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Possible fossilized bone or tooth fragment
Indeterminate fossilized vertebrate material; mineralized hydroxyapatite replaced or coated by silica/carbonate
fossil
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Shark Tooth Fossil
Vertebrate fossilized tooth (various genera such as Carcharodon, Otodus, or Negaprion)
fossil
Amber (Tumbled/Polished)
Succinite (Fossilized Tree Resin)
mineraloid
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Amber
Succinite (C10H16O)
mineraloid
Fossilized Gastropod (Snail)
Class Gastropoda (internal mold or 'steinkern')
sedimentary
Amber
Succinite / Fossilized Tree Resin
fossil
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Fossil Coral (Honeycomb Coral)
Favosites (extinct genus of Tabulate coral)
sedimentary
Amber
Succinite
Organic mineraloid
Amber
Succinite (Resinite), C10-H16-O
mineral
Amber
Succinite (C10H16O)
mineral
Polished fossilized wood (petrified wood), likely agatized
Silicified wood; predominantly microcrystalline quartz/chalcedony (SiO₂), with iron-oxide coloration
fossil
Possible fossilized ammonite or concretion
Indeterminate fossil specimen; possibly an ammonoid mold/cast in iron-rich sedimentary rock
fossil
Fossilized Coral (Petoskey Stone or Rugose Coral)
Antophyllum (Hexagonaria) or Scleractinia (CaCO3)
sedimentary
Stromatolite (Jasper-replaced)
Fossilized Stromatolite (Cyanobacteria / Cryptozon / Silica SiO2)
sedimentary
Fossilized Shark Tooth (Fragment)
Elasmobranchii fossil (likely Cretalamna or Squalicorax genus)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood / Fossilized Wood (SiO2)
sedimentary
Fossilized Horn Coral
Rugosa (Rugose Coral)
fossil
Fossilized Dinosaur Skull (Tyrannosaurus rex)
Tyrannosaurus rex (permineralized fossil), rich in Hydroxylapatite/Silica
sedimentary
Amber
Succinite (fossilized tree resin)
fossil
Amber
Succinite (Fossilized Tree Resin)
fossil
Amber
Fossilized Tree Resin (C10H16O)
gemstone
Amber
Succinite (Fossilized Tree Resin)
Organic Mineraloid
Amber
Succinite (a specific high-quality amber from the Baltic)
Organic Mineraloid
Fossilized bone fragment, possibly dinosaur or large mammal bone
Fossil bone; mineralized apatite (carbonate-fluorapatite), commonly Ca₅(PO₄)₃(F,OH)
fossil
Amber
Succinite (approximate formula C10H16O)
mineral
Petrified Wood
Silicified Wood (SiO2)
Mineral / Fossil
Amber
Fossilized Tree Resin (Successite)
fossil
Fossilized Shark Tooth (Basal Bone)
Otodus sp. (Mineralized Hydroxyapatite)
sedimentary
Amber (Butterscotch/Egg Yolk Variety)
Succinite (Approx. C10H16O)
Organic Gemstone
Amber
Fossilized Tree Resin (C10H16O)
gemstone
Fossilized Shark Tooth (Otodus obliquus)
Otodus obliquus (Mineralized Apatite / Bio-apatite)
fossil
Petrified Wood with Lichen
Silicified Wood (SiO2) colonized by crustose lichens
fossil
Fossilized Echinoid (Sea Urchin)
Echinoidea (Class) - Often found as Micraster or Clypeaster specimens
sedimentary
Amber
Succinite (specifically for Baltic amber); approximate formula C10H16O
organic mineraloid
Crinoid Stem Fragment
Crinoid (Phylum Echinodermata, Class Crinoidea)
sedimentary
Chert / Flint Pebble
Cryptocrystalline Quartz (SiO2)
sedimentary
Amber
Succinates (Organic compound: C10H16O)
mineraloid