Rock Identifier

Category

None

Browse none specimens identified by the Rock Identifier community.

Learn about None in the encyclopedia

Common Opal

Mudstone

Green Beryl

Matte Obsidian

Sapphire

Hornfels

Argillite

Basalt (with possible quartz/calcite inclusion) (Extrusive mafic igneous rock) — igneous

Basalt (with possible quartz/calcite inclusion)

Extrusive mafic igneous rock

Basalt River Cobble (Basalt (Aphanitic extrusive mafic igneous rock)) — igneous

Basalt River Cobble

Basalt (Aphanitic extrusive mafic igneous rock)

Carnelian Agate (Chalcedony (SiO2 with Iron Oxides)) — sedimentary

Carnelian Agate

Chalcedony (SiO2 with Iron Oxides)

Tumbled River Pebble (Quartzite / Agate) (Silicon Dioxide (SiO2)) — sedimentary

Tumbled River Pebble (Quartzite / Agate)

Silicon Dioxide (SiO2)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Red Sandstone (Siltstone pebble) (Arenite / Siltstone (Silicon dioxide based with hematite impurities)) — sedimentary

Red Sandstone (Siltstone pebble)

Arenite / Siltstone (Silicon dioxide based with hematite impurities)

Quartz Druzy (on Matrix) (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy (on Matrix)

Silicon Dioxide (SiO2)

Clear Quartz Crystal Cluster (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Quartz (likely heat-treated or colored cord) (Silicon Dioxide (SiO2)) — mineral

Quartz (likely heat-treated or colored cord)

Silicon Dioxide (SiO2)

Bumblebee Jasper (Calcite with Arsenic and Sulfur inclusions) — sedimentary

Bumblebee Jasper

Calcite with Arsenic and Sulfur inclusions

Quartzite with Iron Staining (Metamorphosed Quartz-rich Arenite) — metamorphic

Quartzite with Iron Staining

Metamorphosed Quartz-rich Arenite

Fossiliferous Chert (Cryptocrystalline quartz (SiO2) with biogenic inclusions) — sedimentary

Fossiliferous Chert

Cryptocrystalline quartz (SiO2) with biogenic inclusions

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

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

Zebra Jasper (Banded microcrystalline quartz (SiO2)) — sedimentary

Zebra Jasper

Banded microcrystalline quartz (SiO2)

Red Sandstone (Sandstone (Quartz Arenite with Iron Oxide)) — sedimentary

Red Sandstone

Sandstone (Quartz Arenite with Iron Oxide)

Red Sandstone (Arenite (Iron-rich)) — sedimentary

Red Sandstone

Arenite (Iron-rich)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Red Jasper with Hematite (Impure Microcrystalline Quartz (SiO2) with Hematite (Fe2O3)) — sedimentary

Red Jasper with Hematite

Impure Microcrystalline Quartz (SiO2) with Hematite (Fe2O3)

Yellow or Honey Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow or Honey Quartz

Silicon Dioxide (SiO2)

Quartz (Chert/Chalcedony variety) (Silicon Dioxide (SiO2)) — sedimentary

Quartz (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Ferruginous Quartz (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Amethyst (Quartz (Silicon Dioxide with Iron impurities), SiO2) — gemstone

Amethyst

Quartz (Silicon Dioxide with Iron impurities), SiO2

Limestone (River Stone) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (River Stone)

Calcium Carbonate (CaCO3)

Sandstone (Quartzite-rich Cobble) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Quartzite-rich Cobble)

Clastic sedimentary rock (primarily SiO2)

Chert (Jasper/Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint)

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Quartz (Milky/Smoky mix) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Smoky mix)

Silicon Dioxide (SiO2)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Chalcedony (Jasper/Agate mix) (Quartz (microcrystalline SiO2)) — sedimentary

Chalcedony (Jasper/Agate mix)

Quartz (microcrystalline SiO2)

Quartzite pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite pebble

Quartzite (primarily SiO2)

Sandstone with Iron Staining (Arenite (SiO2 with FeO(OH) impurities)) — sedimentary

Sandstone with Iron Staining

Arenite (SiO2 with FeO(OH) impurities)

Quartzite with Quartz Veining (Quartzite (SiO2)) — metamorphic

Quartzite with Quartz Veining

Quartzite (SiO2)

Quartzite Pebble (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite Pebble

Quartzite (SiO2 silicon dioxide)

Milky Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Chert (Common Opal/Quartz mix) (Microcrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (Common Opal/Quartz mix)

Microcrystalline Silicon Dioxide (SiO2)

Hag Stone (Perforated Flint or Chert (SiO2)) — sedimentary

Hag Stone

Perforated Flint or Chert (SiO2)

Blue Lace Agate (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Lace Agate

Silicon Dioxide (SiO2) with inclusions

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)