Amber
Succinate (Fossilized Tree Resin)
gemstone
Category
Mineral (Organic)
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Amber / Fossilized Resin
Succinite / Fossilized Tree Resin
mineral
Shark Tooth Fossil
Vertebrate fossilized tooth
fossil
Amber
Succinite
mineral
Pearl
Nacre (Aragonite and Conchiolin), CaCO3
mineral
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Jasper
Silicon dioxide (Quartz variety), SiO2
sedimentary
Amber
Amber (Fossilized Tree Resin)
mineral
Sandstone
Arenite (SiO2 composed primarily of quartz)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Dinosaur Claw Fossil
Fossilized Theropod Claw (Vertebrate Palaeontological Specimen)
fossil
Jasper
Chalcedony (SiO2)
mineral
Fossilized Shark Tooth (Megalodon or Carcharocles species fragment)
Otodus megalodon / Carcharocles spp. (Apatite / Calcium Phosphate)
fossil
Pearls (likely freshwater cultured pearls)
Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin
gemstone
Fluorite
Calcium Fluoride (CaF2)
mineral
Polished operculum (“Shiva eye” shell)
Calcium-carbonate shell operculum, commonly from a turban snail (family Turbinidae); not a mineral specimen
fossil
Chalcopyrite
CuFeS2
mineral
Natural Pearl (appearing in a jewelry setting)
Calcium Carbonate (mostly Aragonite), CaCO3 with Conchiolin
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Glauconitic Sandstone
Glauconitic Quartz Arenite (with K,Mg,Fe,Al silicate hydroxide)
sedimentary
Amber (in Matrix/Shale)
Amber (Fossilized Tree Resin)
mineral
Fossiliferous Flint
Microcrystalline Quartz (SiO2) with Echinoid Fossil
sedimentary
Fossilized Shark Tooth (Partial) or Coprolite
Elasmobranchii (fossil) or Coprolite (trace fossil)
fossil
Glauconitic Sandstone
Glauconitic Sandstone (Greensand)
sedimentary
Moss Agate
Silicon dioxide (SiO2) with inclusions
Mineral
Pink Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
mineral
Coprolite
Fossilized Feces
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Fossilized Nut / Coprolite / Concretion
Trace Fossil / Permineralized Plant Material
fossil
Amber
Succiniferous fossil resin (C10H16O)
gemstone
Amber
Succinite (Fossilized Tree Resin)
fossil
Tumbled moss agate
Chalcedony (microcrystalline quartz, SiO₂) with moss-like inclusions
mineral
Amber
Fossilized Tree Resin
gemstone
Amber
Succinates (C10H16O)
mineraloid
Amber
Succinite
Organic Gemstone (sedimentary associations)
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Amber (Copal)
Succinite (fossilized tree resin)
mineral
Manganese Dendrite on Siltstone
Manganese Oxide (pyrolusite or psilomelane) Dendrites
mineral/sedimentary
Fossilized Shark Tooth (fragment)
Elasmobranchii (Class) fossil
fossil
Fossil gastropod shell
Fossilized marine gastropod; exact genus/species cannot be determined from the image
fossil
Mocha Stone (Dendritic Agate)
Silicon Dioxide (SiO2) with Manganese/Iron inclusions
sedimentary