Naga Silver-Inlaid Ebony and Bone/Horn Beads
Diospyros (Ebony) or Keratin (Horn) with Silver/White-Metal Inlay
Organic (Anthropological Artifact)
Category
Organic (Non Geological)
Browse organic (non geological) specimens identified by the Rock Identifier community.
Quartz Geode with Calcite
Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)
Mineral/Geode
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
metamorphic
Amber
Fossilized Tree Resin (Generic formula roughly C10H16O)
mineral
Anthracite Coal
Anthracite (Carbon-based organic sedimentary/metamorphic rock)
metamorphic
Amber (Cherry or Red variety)
Succinite (with various trace amounts of organic compounds)
Organic Gemstone (not a rock)
Bituminous Coal
Organic-rich sedimentary rock (Complex hydrocarbons)
sedimentary
Amber
Succinite (a specific common type) or Fossilized Tree Resin (C10H16O)
Mineraloid
Mother of Pearl and Onyx
Aragonite (Mother of Pearl) and Chalcedony (Onyx)
mineral
N/A (Non-Geological Specimen)
N/A
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
metamorphic
Amber
Succinite (specifically for Baltic amber); C10H16O (Variable organic compound)
mineral
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Chert Pebble
Microcrystalline Quartz (SiO2)
sedimentary
Banded Chert
Silicon Dioxide (SiO2)
sedimentary
Black Freshwater Pearls
Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3
mineral
Schist with Garnet inclusions
Garnet-mica-schist
metamorphic
Stainless Steel Spoon
Iron-Chromium Alloy (Fe + Cr + Ni)
mineral-based human-made alloy
Chert (Jasper variation)
Chert (Microcrystalline Silicon Dioxide, SiO2)
sedimentary
Shungite
Non-crystalline carbon (similar to anthracite coal or meta-anthracite)
metamorphic
Smurf Rock (Fictional Interpretation)
Cyanus Anthropomorphicus (Geologic Simulation)
Artificial/Fantasy Object
Amber
Succinite (a specific high-quality amber from the Baltic)
Organic Mineraloid
Greenstone / Glauconitic Siltstone
Metabasalt or Glauconite-rich Sedimentary Rock
metamorphic or sedimentary
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Object (Metal/Alloy)
Quartzite
Quartzite (primarily SiO2)
metamorphic
Engineered Quartz Stone
Agglomerated Quartz (SiO2 + Polymer Resin)
mineral-based composite
Shale or Mudstone (Based on appearance)
Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)
Sedimentary
Chert (Smooth River Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Pink Opal
Hydrated Silica (SiO2·nH2O) with Palygorskite inclusions
Mineraloid
Conglomerate
Conglomerate
Sedimentary Rock
Amber
Succinite (Approximate formula: C10H16O)
mineral
Petrified Wood
Silicified Wood (primarily Silicon Dioxide, SiO2)
mineral
Petrified Wood
Silicified Wood (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)
Limonite (with goethite)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide)
sedimentary
Petrified Wood
Silicified Wood (SiO2 permineralization)
sedimentary
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Fe/Mn/Mg)
mineral
Anthracite Coal
Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)
metamorphic
Amber
Succinite (C10H16O)
Organic Mineraloid
Amber
Succinite (Formula: C10H16O)
Organic Mineraloid
Amber (Butterscotch/Egg Yolk Variety)
Succinite (Approx. C10H16O)
Organic Gemstone