Amber
Succinite (approximate formula C10H16O)
mineraloid
Category
Organic (Anthropogenic)
Browse organic (anthropogenic) specimens identified by the Rock Identifier community.
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Moss Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxide
mineral
Precious Red Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
Mineral (Organic Gemstone)
Amber
Succinite
mineral
Amber with inclusion
Amber (Fossilized Tree Resin)
mineral
Chert (specifically Gray Chert)
Silicon Dioxide (SiO2)
sedimentary
Amber
Succinite (specifically Baltic Amber) - Formula: C10H16O (approximate)
Organic Mineraloid
Sandstone with Vitrinite/Coal inclusions
Arenite with Carbonaceous inclusions
sedimentary
Chert / Flint (with Crinoid Stem Molds)
Microcrystalline Quartz (SiO2)
sedimentary
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Mineraloid
Amber
Succinite (C10H16O)
mineraloid
Amber
Succinite (specifically for Baltic amber); approximate formula C10H16O
organic mineraloid
Moss Agate
Chalcedony (Silicon Dioxide - SiO2) with inclusions
Mineral
Amber
Succinite (Resinous fossilized tree sap)
Mineraloid
Ferruginous Sandstone Concretion (Ironstone Phosphorite)
Ferruginous Sandstone (variable Fe-oxide/hydroxide composition)
sedimentary
Fossilized Horn Coral
Order Rugosa (Rugose Coral)
sedimentary
Coral Rock (Coquina)
Biogenic Limestone (Calcium Carbonate - CaCO3)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone with Quartz Crystal Infill
Quartz-cemented quartz arenite
sedimentary
Coal (Bituminous Coal)
Caustobiolith / Sedimentary Rock
sedimentary
Anthracite Coal
Anthracite (Carbon-based metamorphic rock, 86-97% C)
metamorphic
Stromatolite (Fossiliferous Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide)
sedimentary
Amber
Succinite (fossilized resin); C10H16O
mineraloid
Fossilized coral (likely honeycomb or branching coral)
Fossil coral; probable Scleractinia or Tabulata, composition mainly microcrystalline CaCO₃
fossil
Moss Agate
Silicon Dioxide (Chalcedony variety)
mineral
Amber
Succinite / Fossilized Tree Resin
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Banded Chert / Flint Pebble
Microcrystalline Quartz (SiO2)
sedimentary
Petrified Wood
Silicified Wood (primarily Quartz/SiO2)
fossil
Green Moss Agate
Agate (Silicon Dioxide, SiO2) with inclusions
mineral
Moss Agate
Silicon Dioxide (SiO2) with Chlorite/Hornblende inclusions
mineral
Amber
Succinite (specifically for Baltic amber); Chemical formula approximately C10H16O
mineral
Aragonite (Star Cluster or Twinned variety)
Aragonite (Calcium Carbonate, CaCO3)
mineral
Amber
Succinite (approximate formula C10H16O)
mineraloid
Travertine (Tufa)
Chemical Sedimentary Rock / Travertine (CaCO3)
sedimentary
Moss Agate
Agate (Silicon Dioxide, SiO2) with dendritic inclusions
sedimentary
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
mineral
Amber
Succinite
Mineraloid
Amber
Succinite (specifically for Baltic amber); Complex mixture of organic compounds (C10H16O)
Organic Mineraloid
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Pyritic Mudstone
Argillaceous rock (FeS2)
sedimentary