Rock Identifier

Category

Mineral (Specifically A Gemstone Variety)

Browse mineral (specifically a gemstone variety) specimens identified by the Rock Identifier community.

Chert (often called Flint or Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (often called Flint or Jasper)

Silicon Dioxide (SiO2)

sedimentary
Rainbow Moonstone with Black Tourmaline (White Labradorite with Schorl (Na,Ca)(Al,Si)4O8) — mineral

Rainbow Moonstone with Black Tourmaline

White Labradorite with Schorl (Na,Ca)(Al,Si)4O8

mineral
Limestone (specifically fossiliferous/skeletal limestone) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (specifically fossiliferous/skeletal limestone)

Calcium Carbonate (CaCO3)

sedimentary
Chert (often called Jasper in this color) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (often called Jasper in this color)

Microcrystalline quartz (SiO2)

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

Red Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

sedimentary
Dalmatian Stone (Peralkaline Quartz-Feldspar Rock) — igneous

Dalmatian Stone

Peralkaline Quartz-Feldspar Rock

igneous
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

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

Rose Quartz

Quartz (Silicon Dioxide - SiO2) with trace impurities of Titanium, Manganese, or Iron

mineral
Obsidian (Volcanic Glass (Amorphous Silica)) — igneous

Obsidian

Volcanic Glass (Amorphous Silica)

igneous
Chert (Chert Nodule) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Chert Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

sedimentary
Quartz (Milky or Druzy variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Druzy variety)

Silicon Dioxide (SiO2)

mineral
Brecciated Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary

Brecciated Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

sedimentary
Chert (White Chert / Flint) (Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

sedimentary
Quartzite (Milky Quartz Cobble) (Silicon Dioxide (SiO2)) — Metamorphic

Quartzite (Milky Quartz Cobble)

Silicon Dioxide (SiO2)

Metamorphic
Black Pearl (Tahitian Type) (Aragonite / Conchiolin composite (CaCO3)) — mineraloid

Black Pearl (Tahitian Type)

Aragonite / Conchiolin composite (CaCO3)

mineraloid
Chert (specifically Red Chert or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Red Chert or Jasper)

Microcrystalline Quartz (SiO2)

sedimentary
Chert (Jasper/Agate variety) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Cryptocrystalline Quartz (SiO2)

sedimentary
Chert (specifically Flint) (Chert (Microcrystalline or Cryptocrystalline Quartz, SiO2)) — sedimentary

Chert (specifically Flint)

Chert (Microcrystalline or Cryptocrystalline Quartz, SiO2)

sedimentary
Greenstone (Epidote/Chlorite-rich Metabasalt) (Greenschist / Epidosite (Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Greenstone (Epidote/Chlorite-rich Metabasalt)

Greenschist / Epidosite (Ca2(Al,Fe)3(SiO4)3(OH))

metamorphic
Satin Spar (Gypsum) (Hydrous Calcium Sulfate (CaSO4·2H2O)) — mineral

Satin Spar (Gypsum)

Hydrous Calcium Sulfate (CaSO4·2H2O)

mineral
Sodalite (Sodalite - Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

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

Chert Nodule

Microcrystalline Silica (SiO2)

sedimentary
Chert (specifically Red Chert or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Red Chert or Jasper)

Microcrystalline Quartz (SiO2)

sedimentary
Quartz (various varieties) (SiO₂ (Silicon Dioxide)) — Mineral

Quartz (various varieties)

SiO₂ (Silicon Dioxide)

Mineral
Jadeite (Jadeite (NaAlSi2O6)) — metamorphic

Jadeite

Jadeite (NaAlSi2O6)

metamorphic
Pink Granite (Phaneritic Felsic Igneous Plutonic Rock) — igneous

Pink Granite

Phaneritic Felsic Igneous Plutonic Rock

igneous
Sandstone (Ferruginous) (Arenite (Iron-rich)) — sedimentary

Sandstone (Ferruginous)

Arenite (Iron-rich)

sedimentary
Pink Granite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

igneous
Pink Granite (Granite (Felsic Plutonic Rock)) — igneous

Pink Granite

Granite (Felsic Plutonic Rock)

igneous
Jasper (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

sedimentary
Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

sedimentary
Jadeite Jade (NaAlSi2O6 (Sodium Aluminum Silicate)) — metamorphic

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

metamorphic
Dragon Stone (Argillaceous Sedimentary Rock (Ohko Stone)) — sedimentary

Dragon Stone

Argillaceous Sedimentary Rock (Ohko Stone)

sedimentary
Chert (Jasper variety) with Iron Oxide staining (Cryptocrystalline Quartz (SiO2) with Goethite/Limonite impurities) — sedimentary

Chert (Jasper variety) with Iron Oxide staining

Cryptocrystalline Quartz (SiO2) with Goethite/Limonite impurities

sedimentary
Peridot (Olivine) (Olivine ((Mg,Fe)2SiO4)) — Mineral

Peridot (Olivine)

Olivine ((Mg,Fe)2SiO4)

Mineral
Larvikite (Monzonite (intermediate intrusive igneous rock containing plagioclase, alkali feldspar, augite, and biotite)) — igneous

Larvikite

Monzonite (intermediate intrusive igneous rock containing plagioclase, alkali feldspar, augite, and biotite)

igneous
Spinosaurus Tooth Fossil (Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)) — sedimentary

Spinosaurus Tooth Fossil

Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)

sedimentary
Greenstone (Epidosite or Altered Basalt) (Epidosite (Ca2(Al, Fe)3(SiO4)3(OH))) — metamorphic

Greenstone (Epidosite or Altered Basalt)

Epidosite (Ca2(Al, Fe)3(SiO4)3(OH))

metamorphic
Obsidian (Volcanic glass (SiO2 - Silicon Dioxide with impurities)) — igneous

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

igneous
Blue Goldstone (Aventurine Glass (SiO2 with Co and metallic inclusions)) — mineral (synthetic glass)

Blue Goldstone

Aventurine Glass (SiO2 with Co and metallic inclusions)

mineral (synthetic glass)
Jasper (specifically Bloodstone/Heliotrope or Dark Green Jasper) (Cryptocrystalline Quartz (SiO2) with inclusions) — sedimentary

Jasper (specifically Bloodstone/Heliotrope or Dark Green Jasper)

Cryptocrystalline Quartz (SiO2) with inclusions

sedimentary
Limestone (specifically Dolomitic/Crystalline Limestone) (Sedimentary Carbonate Rock (CaCO3 / CaMg(CO3)2)) — sedimentary

Limestone (specifically Dolomitic/Crystalline Limestone)

Sedimentary Carbonate Rock (CaCO3 / CaMg(CO3)2)

sedimentary