Rock Identifier

Category

None

Browse none specimens identified by the Rock Identifier community.

Chert (often called Flint or River Stone) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint or River Stone)

Microcrystalline Quartz (SiO2)

Milky Quartz (Tumbled/Water-worn) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (Tumbled/Water-worn)

Silicon Dioxide (SiO2)

Chert (Flint variety) (Chert (Cryptocrystalline variety of Quartz, SiO2)) — sedimentary

Chert (Flint variety)

Chert (Cryptocrystalline variety of Quartz, SiO2)

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

Sandstone (Quartzite-rich Cobble)

Clastic sedimentary rock (primarily SiO2)

Rose Quartz (Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese

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

Chert (Jasper/Flint variant)

Silicon Dioxide (SiO2)

Chert (Black Flint) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (Black Flint)

Chert (Microcrystalline Quartz, SiO2)

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

Amethyst (Quartz)

Amethyst (Silicon Dioxide with Iron impurities), SiO2

Sandstone (Ferruginous) (Arenite (Fe-rich)) — sedimentary

Sandstone (Ferruginous)

Arenite (Fe-rich)

Amber (specifically Red or Cherry Amber) (Succinite (Resinite); Chemical formula: C10H16O) — Mineraloid

Amber (specifically Red or Cherry Amber)

Succinite (Resinite); Chemical formula: C10H16O

Gossan (Limonite/Goethite) (Hydrated iron oxides (primarily FeO(OH)·nH2O)) — mineral

Gossan (Limonite/Goethite)

Hydrated iron oxides (primarily FeO(OH)·nH2O)

Chert (often called Flint or River Stone) (Chert (Microcrystalline Silicon Dioxide, SiO2)) — sedimentary

Chert (often called Flint or River Stone)

Chert (Microcrystalline Silicon Dioxide, SiO2)

Rose Quartz (Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese

Pickled Dragon Eggs (Fictional Interpretation: Purple Agate or Amethyst Geodes) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Pickled Dragon Eggs (Fictional Interpretation: Purple Agate or Amethyst Geodes)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Rose Quartz (Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)) — mineral

Rose Quartz

Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Bamboo Leaf Jasper (Silicified Siltstone or Jasper (SiO2)) — sedimentary

Bamboo Leaf Jasper

Silicified Siltstone or Jasper (SiO2)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese

Sandstone (Ferruginous) (Ferruginous Sandstone (SiO2 with Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Ferruginous Sandstone (SiO2 with Fe2O3)

Quartzite (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Blue Tiger's Eye (Hawk's Eye) (Pseudomorph of Quartz after Crocidolite (SiO2)) — metamorphic

Blue Tiger's Eye (Hawk's Eye)

Pseudomorph of Quartz after Crocidolite (SiO2)

Quartz / Quartzite (Quartz (Silicon Dioxide, SiO2)) — metamorphic

Quartz / Quartzite

Quartz (Silicon Dioxide, SiO2)

Yellow Jasper (Jasper (Silicon Dioxide with Iron Oxide inclusions), SiO2) — sedimentary

Yellow Jasper

Jasper (Silicon Dioxide with Iron Oxide inclusions), SiO2

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Chert (Flint)

Silicon Dioxide (SiO2)

Citrine (Yellow Quartz) (Silicon Dioxide (SiO2)) — Mineral

Citrine (Yellow Quartz)

Silicon Dioxide (SiO2)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Tiger's Eye (and Hematite/Jasper Matrix) (SiO2 (Pseudomorph of Quartz after Crocidolite) with Hematite/Magnetite) — mineral

Tiger's Eye (and Hematite/Jasper Matrix)

SiO2 (Pseudomorph of Quartz after Crocidolite) with Hematite/Magnetite

Sandstone (Pebble) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Pebble)

Arenite (primarily SiO2)

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

Cloudy Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

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

Red Sandstone

Arenite (primarily Quartz with Iron Oxide)

Yellow Quartz (Citrine/Lemon Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine/Lemon Quartz)

Silicon Dioxide (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartz (specifically Clear Quartz or Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Clear Quartz or Rock Crystal)

Silicon Dioxide (SiO2)

Gold-bearing Quartz (Lode Gold in Silicon Dioxide (SiO2)) — mineral

Gold-bearing Quartz

Lode Gold in Silicon Dioxide (SiO2)

Quartz (Milky/Crystalline) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Crystalline)

Silicon Dioxide (SiO2)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Chert (Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline quartz (SiO2)

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

Quartz (Common Milky Quartz Pebble)

Silicon Dioxide (SiO2)

Dyed Chalcedony (Agate) (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Chalcedony (Agate)

Silicon Dioxide (SiO2) with artificial pigment

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)