Rock Identifier

Category

Mineral And Sedimentary

Browse mineral and sedimentary specimens identified by the Rock Identifier community.

Agate (Silicon Dioxide (SiO2) - variety Chalcedony) — mineral

Agate

Silicon Dioxide (SiO2) - variety Chalcedony

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Amethyst Geode

Silicon Dioxide (SiO2) with iron impurities

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

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Agate (specifically a small Chalcedony nodule) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Agate (specifically a small Chalcedony nodule)

Agate (Cryptocrystalline variety of Quartz, SiO2)

mineral
Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

mineral
Galena (Lead Sulfide (PbS)) — mineral

Galena

Lead Sulfide (PbS)

mineral
Selenite (Satin Spar) (Gypsum (CaSO4·2H2O)) — mineral

Selenite (Satin Spar)

Gypsum (CaSO4·2H2O)

mineral
Carnelian (Carnelian Chalcedony (SiO2 with iron oxide impurities)) — mineral

Carnelian

Carnelian Chalcedony (SiO2 with iron oxide impurities)

mineral
Blue Chalcedony (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

White Quartz

Silicon Dioxide (SiO2)

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

Quartz (specifically Clear Quartz or Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

mineral
Jasper (Jasper (Silica/Quartz) - SiO2) — mineral

Jasper

Jasper (Silica/Quartz) - SiO2

mineral
Dendritic Agate / Moss Agate (Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions) — mineral

Dendritic Agate / Moss Agate

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

mineral
Amber (Succinite (a fossilized organic resin)) — mineral

Amber

Succinite (a fossilized organic resin)

mineral
Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

mineral
Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

mineral
Dyed Agate (Silicon Dioxide (SiO2)) — mineral

Dyed Agate

Silicon Dioxide (SiO2)

mineral
Aragonite Star Cluster (Aragonite (Calcium Carbonate, CaCO3)) — mineral

Aragonite Star Cluster

Aragonite (Calcium Carbonate, CaCO3)

mineral
Quartz / Common Opal (Silicon Dioxide (SiO2)) — mineral

Quartz / Common Opal

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Agate (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Agate

Chalcedony (Silicon Dioxide, SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Yellow Chalcedony (Agate Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (Agate Pebble)

Silicon Dioxide (SiO2)

mineral
Chalcedony (Common Agate) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Common Agate)

Silicon Dioxide (SiO2)

mineral
Chalcedony Nodule (Agate/Chert) (Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)) — mineral

Chalcedony Nodule (Agate/Chert)

Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)

mineral
Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

mineral
Celestite (Celestine) (Strontium sulfate (SrSO4)) — mineral

Celestite (Celestine)

Strontium sulfate (SrSO4)

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

Milky Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

mineral
Quartz / Common Agate (Silicon Dioxide (SiO2)) — mineral

Quartz / Common Agate

Silicon Dioxide (SiO2)

mineral
Carnelian Agate (Silicon Dioxide (SiO2)) — mineral

Carnelian Agate

Silicon Dioxide (SiO2)

mineral
Chalcedony (Botryoidal) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2)

mineral
Ferruginous Sandstone (Grit) (Clastic Sedimentary (Ironstone-rich Sandstone)) — sedimentary

Ferruginous Sandstone (Grit)

Clastic Sedimentary (Ironstone-rich Sandstone)

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

Amethyst

Amethyst (Silicon Dioxide - SiO2 with iron impurities)

mineral
Kambaba Jasper (Stromatolite (Fossilized Algae within Microcrystalline Quartz)) — sedimentary

Kambaba Jasper

Stromatolite (Fossilized Algae within Microcrystalline Quartz)

sedimentary