Biological Specimen (Domestic Dog)
Canis lupus familiaris
Organic (Non-rock)
Category
Organic (Non Rock)
Browse organic (non rock) specimens identified by the Rock Identifier community.
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Oak Wood (Wood Grain Pattern)
Quercus (genus)
Organic (Non-rock)
Quartz pebble or seed/crumb
SiO2 (if quartz)
mineral
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Manganese-coated Sandstone
Clastic sedimentary rock with Manganese Oxide (often Pyrolusite or Psilomelane)
sedimentary
Coal
Coal (Sedimentary Rock / Organic Rock)
sedimentary
Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)
Organic Materia (Not a rock or mineral)
Coal
Anthracite / Bituminous Coal
sedimentary
Shale
Shale (comprised mostly of clay minerals and quartz)
sedimentary
Coal (Bituminous or Anthracite)
Carbonaceous Sedimentary Rock
sedimentary
Bituminous Coal
Organic sedimentary rock (humic coal)
sedimentary
Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Shungite (Noble/Type II)
Non-crystalline carbon (Fullerene-bearing carbonaceous rock)
metamorphic
Fossiliferous Rock (likely Dinosaur Fossil in Matrix)
Permineralized Vertebrate Fossil (Calcium Carbonate/Silica replaced bone material)
sedimentary
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Organic / Biological
Coal (Anthracite / Bituminous)
Organic Sedimentary Rock (Carbon-based)
sedimentary
Shale
Shale (Fine-grained clastic sedimentary rock)
sedimentary
Chert Cobble / Quartzite River Stone
Microcrystalline Quartz (SiO2) / Quartzite
sedimentary
Amber (Copal)
Succinite (fossilized resin)
mineral
Black Jasper (Black Onyx substitute)
Silicon Dioxide (SiO2) with carbonaceous impurities
sedimentary (microcrystalline quartz)
Shale or Siltstone
Sedimentary Clastic Rock (Variable mineral composition including quartz and clay minerals)
sedimentary
Ironstone Concretion
Ironstone (Siderite/Goethite/Hematite matrix)
sedimentary
Amber
Fossilized Tree Resin
gemstone
Chert (Pebble)
Microcrystalline to Cryptocrystalline Quartz (SiO2)
sedimentary
Shale
Shale (clay-sized silicate minerals)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Chert (Pebble)
Silicon Dioxide (SiO2)
sedimentary
Weathered River Rock (likely Chert or Basalt with algae)
Silicon dioxide (SiO2) with organic biofilm
sedimentary
Bituminous Coal
Organic-rich sedimentary rock (Complex hydrocarbons)
sedimentary
Shungite
Non-crystalline carbon (high-carbon metamorphic rock)
metamorphic
Anthracite Coal
Anthracite (Carbon-based organic sedimentary/metamorphic rock)
metamorphic
Fossilized Shark Tooth or Bone Fragment
Vertebrate Fossil (likely Carcharodon or similar genus)
fossil
Pink Opal
Amorphous Hydrous Silica (SiO2·nH2O)
mineral
Chert (Jasper / Petrified Wood)
Microcrystalline Quartz (SiO2)
sedimentary
Fossiliferous Sandstone / Fossil Fragment
Fossiliferous Sedimentary Matrix with Indeterminate Fossil Material
fossil
Pink Opal (Common Opal)
Amorphous Hydrated Silica (SiO2·nH2O)
mineral
Chert (often called Flint or Jasper depending on color)
Chert (SiO2 - Microcrystalline or Cryptocrystalline Quartz)
sedimentary
Coal (Bituminous)
Organic sedimentary rock primarily consisting of carbon (C)
sedimentary
Chert (River Cobble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Lignite (Brown Coal)
Humic Lignite (Carbonaceous sedimentary rock)
sedimentary
Pink Opal
Hydrated Amorphous Silica (SiO2·nH2O)
mineraloid