Amber
Succinite
Category
Browse organic material specimens identified by the Rock Identifier community.
Amber
Succinite
Travertine
Terrestrial Sedimentary Limestone (CaCO3)
Chert (varieties include Flint and Jasper)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
Fossiliferous Chert (with Fossil Shells)
Silicon Dioxide (SiO2) with biogenic inclusions
Travertine
Calcareous Tufa / Travertine (CaCO3)
Slate
Slate (foliated metamorphic rock, primarily composed of quartz, illite, chlorite, and micas)
Ambergris (Geological/Organic Specimen)
Ambra grisea (Produced by Physeter macrocephalus)
Amber
Succinite (fossilized resin, C10H16O)
Amber
Succinite (fossilized resin)
Wood Beads (Palmwood/Ebony)
Various species for wood, but often refers to woods like Palmwood (e.g., Borassus flabellifer) or Ebony (Diospyros spp.) for their distinctive grain and hardness.
Jasper
Silicon dioxide (SiO2)
Amber
Succinite (fossilized resin)
Petrified Wood
Silicified wood (Quartz/Chalcedony/Opal replacing organic matter)
Petrified Wood
Silicified Wood (primarily SiO2)
Shungite
Non-crystalline carbon (allotrope of carbon)
Petrified Wood
Silicified Wood (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Green Moss Agate
Silicon Dioxide with inclusions (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Pyrite Geode
Iron Disulfide (FeS2)
Chert (Chalcedony/Common Opal)
Microcrystalline Quartz (SiO2)
Chert (or Chalcedony)
Microcrystalline Quartz (SiO2)
Jasper Agate
Silicon dioxide (SiO2)
Pyrite (Fool's Gold) Cube
Iron Sulfide (FeS2)
Amber
Succinite (C10H16O)
Moss Agate
Chalcedony (Silicon Dioxide - SiO2) with inclusions
Pyritic Mudstone
Argillaceous rock (FeS2)
Chert Nodules in Limestone
Microcrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)
Chert
Silicon dioxide (SiO2)
Basaltic Tuff / Volcanic Breccia
Pyroclastic Breccia / Lithic Tuff
Tufa (Calcareous Tufa)
Calcareous Tufa (Precipitated CaCO3)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (SiO2)
Chert / Flint
Silicon Dioxide (SiO2)
Chert (Jasper)
Silicon dioxide (SiO2)
Sandstone
Arenite
Sandstone
Arenite
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper
Silicon dioxide (SiO2) with impurities
Green Jasper
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Pyrite
Iron Sulfide (FeS2)