Rock Identifier

Category

None

Browse none specimens identified by the Rock Identifier community.

Chert / Flint (Chert (SiO2)) — sedimentary

Chert / Flint

Chert (SiO2)

sedimentary
Amethyst (Silicon dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon dioxide (SiO2) with iron impurities

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Chert (Basanite / Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Basanite / Flint variety)

Microcrystalline Quartz (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

sedimentary
Milky Quartz (Silicon dioxide (SiO2)) — mineral

Milky Quartz

Silicon dioxide (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Mixed Quartz and River Pebbles (Stone Collection) (Mixed assortment containing mainly Silicon Dioxide (SiO2)) — igneous, sedimentary, metamorphic, and mineral

Mixed Quartz and River Pebbles (Stone Collection)

Mixed assortment containing mainly Silicon Dioxide (SiO2)

igneous, sedimentary, metamorphic, and mineral
Quartzite (with Metamorphic Foliation) (Quartzite (Recrystallized SiO2)) — metamorphic

Quartzite (with Metamorphic Foliation)

Quartzite (Recrystallized SiO2)

metamorphic
Chert (specifically Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Kambaba Jasper (Stromatolite (Fossilized Algae)) — sedimentary

Kambaba Jasper

Stromatolite (Fossilized Algae)

sedimentary
Vanadinite (Lead Chlorovanadate - Pb5(VO4)3Cl) — mineral

Vanadinite

Lead Chlorovanadate - Pb5(VO4)3Cl

mineral
Quartz Geode (Druzy) (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Geode (Druzy)

Crystalline Silicon Dioxide (SiO2)

mineral
Gold (Native Gold (Au)) — mineral

Gold

Native Gold (Au)

mineral
Lake Superior Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Lake Superior Agate

Cryptocrystalline Quartz (SiO2)

mineral
Quartz Crystal Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Fragment

Silicon Dioxide (SiO2)

mineral
Gold (Native Gold (Au)) — mineral

Gold

Native Gold (Au)

mineral
Chert (Novaculite Variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Novaculite Variety)

Microcrystalline Quartz (SiO2)

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

Chert (Yellow or Brown Jasper)

Microcrystalline Quartz (SiO2)

sedimentary
Moqui Marble (Iron Oxide Concretion (Hematite/Goethite-cemented Sandstone)) — sedimentary

Moqui Marble

Iron Oxide Concretion (Hematite/Goethite-cemented Sandstone)

sedimentary
Yellow Aventurine (Silicon Dioxide (Quartz) with inclusions (SiO2)) — Metamorphic rock

Yellow Aventurine

Silicon Dioxide (Quartz) with inclusions (SiO2)

Metamorphic rock
Clear Quartz (Rock Crystal) (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

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

Citrine Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Clear Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

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

Chert (Chert / Flint)

Silicon Dioxide (SiO2)

sedimentary
Citrine Quartz (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

mineral
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Tiger's Eye (Tiger's Eye (SiO2 with crocidolite inclusions)) — mineral

Tiger's Eye

Tiger's Eye (SiO2 with crocidolite inclusions)

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

Smoky Quartz

Silicon Dioxide (SiO2)

mineral
Amethyst (Variety of Quartz) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Variety of Quartz)

Silicon Dioxide (SiO2) with iron impurities

mineral
Chevron Amethyst (Silicon Dioxide (SiO2) with trace Iron (Fe4+)) — mineral

Chevron Amethyst

Silicon Dioxide (SiO2) with trace Iron (Fe4+)

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

Amethyst

Amethyst (Silicon Dioxide, SiO2 with Iron impurities)

mineral
Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

mineral
Chert Nodule (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodule

Microcrystalline Quartz (SiO2)

sedimentary
Limonite (Iron Ore) (Hydrous ferric oxides (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Hydrous ferric oxides (FeO(OH)·nH2O)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Blue Chalcedony (likely dyed) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Blue Chalcedony (likely dyed)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

mineral