Amber
Fossilized tree resin (Amorphous organic polymer)
gemstone
Category
Organic (Biological Specimen)
Browse organic (biological specimen) specimens identified by the Rock Identifier community.
Amber (Rough Baltics/Beach Specimen)
Succinicum (Organic Gemstone - Fossilized Resin)
mineral
Fossiliferous Limestone with Rugose Coral
Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)
sedimentary
Limestone (Weathered)
Calcium Carbonate (CaCO3)
sedimentary
Fossiliferous Limestone / Petrifaction
Sedimentary rock with fossil inclusions / Calcium Carbonate (CaCO3)
fossil
Amber
Succinite (fossilized resin)
Organic Mineraloid
Amber
Succinite (specifically for Baltic amber); chemical formula approx. C10H16O
Organic Gemstone (fossilized resin)
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Amber
Succinite (fossilized tree resin)
mineraloid
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Unknown Organic Object (likely a berry or fruit)
Not applicable; this is not a geological specimen. If it were a cranberry, its scientific name would be Vaccinium macrocarpon; if a cherry, it would be Prunus avium or Prunus cerasus.
Organic Material (likely a fruit or berry)
Coral Skeleton (Scleractinia)
Aragonite (CaCO3) biomineralisation within Anthozoa
fossil
Kidney Stone (Urolith)
Calculus renalis (Biogenic mineral aggregate)
mineral
Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
sedimentary
Seashell Fragment
Calcium carbonate (CaCO3) - primarily Aragonite or Calcite
fossil
Dendritic Limestone
Calcite with Manganese Oxide (Manganese Dendrites)
sedimentary
Amber
Resinite / Fossilized Tree Resin
mineral
Amber
Succinicum (C10H16O)
mineral
Tonsil Stone (Tonsillolith)
Calcium phosphate / Calcium carbonate biomineral
mineral
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Shungite
Shungite (Non-crystalline carbon, C)
mineral
Amber
Succinite (specific to Baltic amber), fossilized tree resin
Organic Mineraloid
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Petrified Wood
Silicified Wood (primarily Quartz / Chalcedony: SiO2)
metamorphic
Moss-covered Limestone with Quartz/Calcite Pocket
Calcium Carbonate (CaCO3) rock with biological moss coating
sedimentary
Dog (Sleeping)
Canis familiaris (or Canis lupus familiaris)
Organic/Biological
Biological Bone (Patella/Knee)
Patella (part of the Human Skeletal System)
Organic Structure (Not a Rock)
Ironstone Concretion
Ironstone (Limonite/Goethite Concretion)
sedimentary
Fossil Shark Tooth
Carcharocles (Otodus) sp. or similar fossilized Chondrichthyes tooth
sedimentary
Amber (Copal)
Succinite (fossilized tree resin)
mineral
Fossil Shark Tooth (Sand Tiger or Mackerel Shark)
Carcharias sp. or Otodus sp. replaced by Hydroxylapatite/Calcium Carbonate
sedimentary
Amber
Succiniferous fossil resin (C10H16O)
mineral
Land Snail Shell
Gastropoda (Calcium Carbonate, CaCO3)
fossil
Fossiliferous Limestone with Rugose Coral
Calcite (CaCO3) containing a Rugosa (Horn Coral) fossil
sedimentary
Turquoise and Red Coral
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Red Coral: Corallium rubrum (organic gemstone)
mineral
Precious Red Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
Mineral (Organic Gemstone)
Amber
Succinite (specifically Baltic Amber) - Formula: C10H16O (approximate)
Organic Mineraloid
Amber
Succinite (approximate formula C10H16O)
mineraloid
Amber
Succinite (approximate formula C10H16O)
mineral
Fossilized Shark Tooth (Partial) or Coprolite
Elasmobranchii (fossil) or Coprolite (trace fossil)
fossil
Chert (Arrowhead/Projectile Point)
Microcrystalline quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary