Rock Identifier

Category

Mineral, Jewelry

Browse mineral, jewelry specimens identified by the Rock Identifier community.

Sapphire (likely blue synthetic sapphire or blue glass in a ring) (Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.) — Mineral

Sapphire (likely blue synthetic sapphire or blue glass in a ring)

Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.

Mineral
Yellow Aventurine (Quartzite with inclusions (SiO2)) — metamorphic

Yellow Aventurine

Quartzite with inclusions (SiO2)

metamorphic
Calcite (Calcite (Mineral; CaCO₃)) — Mineral

Calcite

Calcite (Mineral; CaCO₃)

Mineral
Gold Nugget / Gold-bearing Quartz (Native Gold (Au)) — mineral

Gold Nugget / Gold-bearing Quartz

Native Gold (Au)

mineral
Jade (Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)) — metamorphic

Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

metamorphic
Green Aventurine (Quartzite) (Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine (Quartzite)

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

metamorphic
Almandine Garnet (Iron aluminum silicate (Fe3Al2(SiO4)3)) — mineral

Almandine Garnet

Iron aluminum silicate (Fe3Al2(SiO4)3)

mineral
Malachite (Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)) — mineral

Malachite

Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)

mineral
Quartz (Clear Quartz and Rose Quartz variants) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear Quartz and Rose Quartz variants)

Silicon Dioxide (SiO2)

mineral
Tiger's Eye (Tiger's Eye (Pseudomorph of Quartz after Crocidolite), SiO2) — Mineral

Tiger's Eye

Tiger's Eye (Pseudomorph of Quartz after Crocidolite), SiO2

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

Gold Nugget

Native Gold (Au)

mineral
Sunstone (Feldspar) (Plagioclase Feldspar ((Ca, Na)(Al, Si)4O8)) — mineral

Sunstone (Feldspar)

Plagioclase Feldspar ((Ca, Na)(Al, Si)4O8)

mineral
Jasper Breccia (Silicon Dioxide (SiO2) - Brecciated Microcrystalline Quartz) — sedimentary

Jasper Breccia

Silicon Dioxide (SiO2) - Brecciated Microcrystalline Quartz

sedimentary
Ammonite Fossil (Ammonoidea (Calcium carbonate or Pyrite replaced)) — sedimentary

Ammonite Fossil

Ammonoidea (Calcium carbonate or Pyrite replaced)

sedimentary
Moonstone (Orthoclase Feldspar (KAlSi3O8)) — mineral

Moonstone

Orthoclase Feldspar (KAlSi3O8)

mineral
Tiger's Eye (Quartz (SiO2) with fibrous inclusions of Altered Crocidolite) — mineral

Tiger's Eye

Quartz (SiO2) with fibrous inclusions of Altered Crocidolite

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

Clear Quartz (Druzy/Crystal Cluster)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

mineral
Quartz (Milky or Clear Quartz fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Clear Quartz fragment)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Bronzite (MgSiO3 (Enstatite with 10-30% FeSiO3 in solid solution)) — Mineral

Bronzite

MgSiO3 (Enstatite with 10-30% FeSiO3 in solid solution)

Mineral
Amethyst (Silicon Dioxide (SiO2) with trace Iron (Fe) impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with trace Iron (Fe) impurities

mineral
Beryl (Emerald Variety) (Beryllium Aluminum Silicate (Be3Al2(SiO3)6)) — mineral

Beryl (Emerald Variety)

Beryllium Aluminum Silicate (Be3Al2(SiO3)6)

mineral
Quartz (specifically Milky or Clear Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Milky or Clear Quartz)

Silicon Dioxide (SiO2)

mineral
Labradorite (Labradorite (Ca, Na)(Al, Si)4O8) — mineral

Labradorite

Labradorite (Ca, Na)(Al, Si)4O8

mineral
Sodalite (Sodalite (Na8Al6Si6O24Cl2)) — Mineral

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Mineral
Carnelian (Carnelian (Silicon Dioxide, SiO2)) — mineral

Carnelian

Carnelian (Silicon Dioxide, SiO2)

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

mineral
Quartz Crystal (specifically a small Clear Quartz point) (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal (specifically a small Clear Quartz point)

Silicon Dioxide (SiO2)

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

Amethyst

Silicon Dioxide with Iron impurities (SiO2)

mineral
Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — Mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Mineral
Rose Quartz (SiO2 (Silicon Dioxide)) — mineral

Rose Quartz

SiO2 (Silicon Dioxide)

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

Smoky Quartz

Silicon Dioxide (SiO2)

mineral
Larimar (Blue Pectolite (NaCa2Si3O8(OH))) — mineral

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

mineral
Fire Agate (SiO2 (Silicon Dioxide with Iron Oxide inclusions)) — mineral

Fire Agate

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

mineral
Arfvedsonite in Matrix (Arfvedsonite [Na3(Fe2+)4Fe3+Si8O22(OH)2]) — mineral

Arfvedsonite in Matrix

Arfvedsonite [Na3(Fe2+)4Fe3+Si8O22(OH)2]

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

Peridot

Olivine ((Mg, Fe)2SiO4)

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

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

mineral
Labradorite (Labradorite ((Ca, Na)(Al, Si)4O8)) — mineral

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

mineral