Rock Identifier

Category

Gemstone

Browse gemstone specimens identified by the Rock Identifier community.

Hawk's Eye (Blue Tiger's Eye) (Quartz (fibrous crocidolite variety)) — Mineral

Hawk's Eye (Blue Tiger's Eye)

Quartz (fibrous crocidolite variety)

Carnelian (Carnelian (a variety of Chalcedony, SiO2)) — mineral

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

Quartz (Iron-stained or Milky) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained or Milky)

Silicon Dioxide (SiO2)

Dalmation Stone (Peralkaline Rock (mixed silicate minerals)) — igneous

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Quartz (Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Jasper with Agate Inclusions (Jasper (Silicon Dioxide, SiO2) with Chalcedony/Agate) — sedimentary

Jasper with Agate Inclusions

Jasper (Silicon Dioxide, SiO2) with Chalcedony/Agate

Yellow Jasper (Silicon Dioxide (SiO2) - Impure Cryptocrystalline Quartz) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) - Impure Cryptocrystalline Quartz

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

Yellow Jasper (Silicon Dioxide (SiO2) with iron hydroxides (Goethite)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides (Goethite)

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

Dendritic Agate

Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)

Aventurine (Silicon Dioxide (SiO2) with inclusions of Fuchsite) — mineral

Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

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

Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Opal (Hydrated Amorphous Silica (SiO2·nH2O)) — Mineral

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Potassium Feldspar (Orthoclase) (Orthoclase (KAlSi3O8)) — mineral

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

Tiger's Eye (Silicon Dioxide (SiO2)) — Mineral

Tiger's Eye

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz / Silicon Dioxide (SiO2)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

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

Quartz (Milky/Crystalline)

Quartz (Silicon Dioxide, SiO2)

Carnelian (Carnelian (Varietal of Chalcedony, SiO2 with Iron Oxide impurities)) — mineral

Carnelian

Carnelian (Varietal of Chalcedony, SiO2 with Iron Oxide impurities)

Red Jasper (Silicon Dioxide (SiO2) with impure Iron oxides) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with impure Iron oxides

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Unakite (Epidotized Granite) (Epidotized Granite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Unakite (Epidotized Granite)

Epidotized Granite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Amethyst

SiO2 (Silicon Dioxide with iron impurities)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Tiger's Eye (Rough Slab) (Pseudomorph of Quartz after Crocidolite (SiO2 with Fe-containing inclusions)) — mineral

Tiger's Eye (Rough Slab)

Pseudomorph of Quartz after Crocidolite (SiO2 with Fe-containing inclusions)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Tiger's Eye (Rough) (Pseudomorph of Quartz after Crocidolite (SiO2 with FeOOH inclusions)) — mineral

Tiger's Eye (Rough)

Pseudomorph of Quartz after Crocidolite (SiO2 with FeOOH inclusions)

Moss Agate (Silicon Dioxide (SiO2) with inclusions) — mineral

Moss Agate

Silicon Dioxide (SiO2) with inclusions

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

Amethyst (Variety of Quartz)

Silicon Dioxide (SiO2) with iron impurities

Rutilated Prehnite (Prehnite - Ca2Al(AlSi3O10)(OH)2 with Epidote/Tourmaline inclusions) — mineral

Rutilated Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2 with Epidote/Tourmaline inclusions

Red Garnet (Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)) — mineral

Red Garnet

Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)

Red Jasper (Opaque Chalcedony) (Jasper / Silicon Dioxide (SiO2) with Ferric Iron inclusions) — mineral

Red Jasper (Opaque Chalcedony)

Jasper / Silicon Dioxide (SiO2) with Ferric Iron inclusions

Green Aventurine (Aventurine Quartz (SiO2 with Fuchsite inclusions)) — metamorphic

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

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

Red Jasper (Tumbled)

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper (Jasper (Silica-rich microcrystalline Quartz, SiO2 with Fe2O3 impurities)) — sedimentary

Jasper

Jasper (Silica-rich microcrystalline Quartz, SiO2 with Fe2O3 impurities)