Rock Identifier

Category

Not A Natural Rock

Browse not a natural rock specimens identified by the Rock Identifier community.

Learn about Not A Natural Rock in the encyclopedia

Asphalt Rock

Rock Gypsum

Coral Rock

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Chalk

Obsidian

Baddeleyite

Cataclasite

Anorthosite

Kimberlite

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — gemstone

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz Cluster (Quartz (Silicon Dioxide) - SiO2) — mineral

Smoky Quartz Cluster

Quartz (Silicon Dioxide) - SiO2

Citrine (Quartz (Silicon dioxide, SiO2)) — gemstone

Citrine

Quartz (Silicon dioxide, SiO2)

Diamond (Native Carbon (C)) — gemstone

Diamond

Native Carbon (C)

Shungite (Shungite (Amorphous Carbon)) — mineral

Shungite

Shungite (Amorphous Carbon)

Greenstone, likely serpentine or green jasper (Serpentine-group minerals, chiefly antigorite/lizardite; possibly quartz-rich jasper) — metamorphic

Greenstone, likely serpentine or green jasper

Serpentine-group minerals, chiefly antigorite/lizardite; possibly quartz-rich jasper

Rounded quartz-rich beach pebble (Likely milky quartz or quartzite (SiO₂)) — mineral

Rounded quartz-rich beach pebble

Likely milky quartz or quartzite (SiO₂)

Red Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Citrine Quartz (Citrine (Silicon Dioxide, SiO2)) — mineral

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)

Goldstone (Red) (Aventurine Glass (SiO2 + Cu)) — Synthetic Glass (Often categorized as a simulated mineral)

Goldstone (Red)

Aventurine Glass (SiO2 + Cu)

Synthetic Glass (Often categorized as a simulated mineral)

Goldstone (Red/Brown) (Aventurine Glass (SiO2 with Copper inclusions)) — Mineral (Man-made glass)

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Mineral (Man-made glass)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Faceted Clear Gemstone (Likely Quartz or Cubic Zirconia) (Silicon Dioxide (SiO2) or Zirconium Dioxide (ZrO2)) — gemstone

Faceted Clear Gemstone (Likely Quartz or Cubic Zirconia)

Silicon Dioxide (SiO2) or Zirconium Dioxide (ZrO2)

Mahogany Obsidian (Volcanic Glass (predominantly SiO2 with Hematite/Magnetite inclusions)) — igneous

Mahogany Obsidian

Volcanic Glass (predominantly SiO2 with Hematite/Magnetite inclusions)

Chert (White Variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (White Variety)

Silicon Dioxide (SiO2)

Yellow Quartz (Polished) (Silicon Dioxide (SiO2) with iron inclusions) — mineral

Yellow Quartz (Polished)

Silicon Dioxide (SiO2) with iron inclusions

Quartz (likely a macrocrystalline variety like milky quartz or smoky quartz, given the appearance in the image) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (likely a macrocrystalline variety like milky quartz or smoky quartz, given the appearance in the image)

Quartz (SiO₂ - Silicon Dioxide)

Shungite (Carbonaceous rock (primarily amorphous carbon)) — Mineraloid

Shungite

Carbonaceous rock (primarily amorphous carbon)

Oco Geode (Silicon Dioxide (SiO2) with various inclusions) — mineral

Oco Geode

Silicon Dioxide (SiO2) with various inclusions

Halite (Sodium Chloride (NaCl)) — mineral

Halite

Sodium Chloride (NaCl)

Red Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Chert (Yellow Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

Citrine Quartz (Quartz (SiO2) - specifically, a variety of macrocrystalline quartz) — Mineral

Citrine Quartz

Quartz (SiO2) - specifically, a variety of macrocrystalline quartz

Citrine (Silicon Dioxide (SiO2)) — gemstone

Citrine

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (SiO2 (Silicon Dioxide)) — mineral

Smoky Quartz

SiO2 (Silicon Dioxide)

Goethite (Goethite (FeO(OH))) — mineral

Goethite

Goethite (FeO(OH))

Citrine (Raw) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine (Raw)

Silicon Dioxide (SiO2) with iron impurities

Ferrosilicon Slag (Industrial Vitrified Glass) (Vitreous Silicate Residue) — Antropogenic (Man-made industrial byproduct)

Ferrosilicon Slag (Industrial Vitrified Glass)

Vitreous Silicate Residue

Antropogenic (Man-made industrial byproduct)

Diamond (Natural Diamond (Carbon, C)) — mineral

Diamond

Natural Diamond (Carbon, C)

Sodalite beads (Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely with minor lazurite/pyrite or calcite inclusions) — mineral

Sodalite beads

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely with minor lazurite/pyrite or calcite inclusions

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Blue Sapphire (Faceted) (Corundum (Al2O3)) — gemstone

Blue Sapphire (Faceted)

Corundum (Al2O3)

Worn quartz-rich pebble, likely chert or quartzite (Microcrystalline quartz (SiO₂), possibly quartzite) — sedimentary or metamorphic

Worn quartz-rich pebble, likely chert or quartzite

Microcrystalline quartz (SiO₂), possibly quartzite

sedimentary or metamorphic

Rounded pebble, likely quartz-rich sandstone or chert (Indeterminate lithic clast; possibly quartz arenite or microcrystalline quartz (SiO₂)) — sedimentary

Rounded pebble, likely quartz-rich sandstone or chert

Indeterminate lithic clast; possibly quartz arenite or microcrystalline quartz (SiO₂)

Clear Quartz (faceted) / Diamond Simulant (Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)) — gemstone

Clear Quartz (faceted) / Diamond Simulant

Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

Polished blue banded agate slice (Chalcedony (microcrystalline quartz), SiO₂, commonly with trace iron and other coloring elements) — mineral

Polished blue banded agate slice

Chalcedony (microcrystalline quartz), SiO₂, commonly with trace iron and other coloring elements

Shale (Shale (fine-grained clastic sedimentary rock)) — Sedimentary

Shale

Shale (fine-grained clastic sedimentary rock)

Diamond (Diamond (C)) — Mineral

Diamond

Diamond (C)