Rock Identifier

Category

Mineral, Jewelry

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

Learn about Mineral, Jewelry in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Dolomite

Carnelian (SiO2 (Silicon Dioxide) with Iron Oxide impurities) — mineral

Carnelian

SiO2 (Silicon Dioxide) with Iron Oxide impurities

Tumbled Quartz (Silicon Dioxide (SiO2)) — mineral

Tumbled Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Green Moss Agate (Silicon Dioxide (SiO2) with Mineral Inclusions) — sedimentary

Green Moss Agate

Silicon Dioxide (SiO2) with Mineral Inclusions

Jasper (Silicon Dioxide (SiO2) with impurities, microcrystalline quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) with impurities, microcrystalline quartz

Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

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

Sodalite

Sodalite, Na8(Al6Si6O24)Cl2

Labradorite (Larvikite variety) (Plagioclase Feldspar (Na,Ca)(Si,Al)4O8) — igneous

Labradorite (Larvikite variety)

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

Smoky quartz (Quartz, silicon dioxide (SiO₂), brown to gray variety) — mineral

Smoky quartz

Quartz, silicon dioxide (SiO₂), brown to gray variety

Small purple quartz crystal, likely amethyst (Amethyst: violet variety of quartz, silicon dioxide (SiO₂)) — gemstone

Small purple quartz crystal, likely amethyst

Amethyst: violet variety of quartz, silicon dioxide (SiO₂)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Ferruginous Quartz / Iron-Stained Quartz (Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)) — mineral

Ferruginous Quartz / Iron-Stained Quartz

Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)

Emerald in Matrix (Beryl (Be3Al2(SiO3)6) embedded in schist or pegmatite host rock) — mineral

Emerald in Matrix

Beryl (Be3Al2(SiO3)6) embedded in schist or pegmatite host rock

Bumblebee Jasper (Fibrous Calcite with Arsenic and Sulfur Inclusions) — gemstone

Bumblebee Jasper

Fibrous Calcite with Arsenic and Sulfur Inclusions

Petrified Wood (Silicified wood (primarily quartz, SiO2)) — fossil

Petrified Wood

Silicified wood (primarily quartz, SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Petrified Wood (Silicified Wood (primarily quartz/chalcedony replacing organic wood structures, SiO2)) — fossil

Petrified Wood

Silicified Wood (primarily quartz/chalcedony replacing organic wood structures, SiO2)

Agate (Chalcedony (SiO2)) — sedimentary

Agate

Chalcedony (SiO2)

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

Larimar (Pectolite)

Pectolite (NaCa2Si3O8(OH))

Pyrite (Iron Pyrite (FeS2)) — mineral

Pyrite

Iron Pyrite (FeS2)

Tourmaline crystal (Tourmaline Group (Complex Borosilicate)) — mineral

Tourmaline crystal

Tourmaline Group (Complex Borosilicate)

Red Jasper (SiO2 (Microcrystalline Quartz)) — sedimentary

Red Jasper

SiO2 (Microcrystalline Quartz)

Aquamarine (Beryl (Be3Al2(SiO3)6)) — gemstone

Aquamarine

Beryl (Be3Al2(SiO3)6)

Dyed Agate / Quartz (Tumbled) (Silicon Dioxide (SiO2) with artificial dye) — mineral

Dyed Agate / Quartz (Tumbled)

Silicon Dioxide (SiO2) with artificial dye

Tektite (Indochinite) (Tektite (Natural silica glass)) — meteorite

Tektite (Indochinite)

Tektite (Natural silica glass)

Honey Calcite (Calcium Carbonate (CaCO3)) — mineral

Honey Calcite

Calcium Carbonate (CaCO3)

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

Citrine

Citrine (Silicon Dioxide, SiO2)

Amazonite (Microcline (KAlSi3O8) with lead impurities) — mineral

Amazonite

Microcline (KAlSi3O8) with lead impurities

Quartz (Tumbled/Water-worn) (Silicon Dioxide (SiO2)) — mineral

Quartz (Tumbled/Water-worn)

Silicon Dioxide (SiO2)

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

Amethyst and Milky Quartz

Silicon Dioxide (SiO2)

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Rough Diamond / Clear Quartz (C (Carbon) or SiO2 (Silicon Dioxide)) — mineral

Rough Diamond / Clear Quartz

C (Carbon) or SiO2 (Silicon Dioxide)

Quartz with Chlorite inclusions (Silicon Dioxide (SiO2) with Chlorite group minerals (hydrous magnesium iron alumino-silicate)) — mineral

Quartz with Chlorite inclusions

Silicon Dioxide (SiO2) with Chlorite group minerals (hydrous magnesium iron alumino-silicate)

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

Amethyst crystal

Silicon Dioxide (SiO2) with iron impurities

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Aquamarine (Beryl) Beads (Beryllium aluminum silicate (Be3Al2Si6O18)) — gemstone

Aquamarine (Beryl) Beads

Beryllium aluminum silicate (Be3Al2Si6O18)

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

Rose Quartz

Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron

Emerald crystal in host rock (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — gemstone

Emerald crystal in host rock

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Rose Quartz (SiO2 (Silicon Dioxide) with traces of titanium, iron, or manganese) — mineral

Rose Quartz

SiO2 (Silicon Dioxide) with traces of titanium, iron, or manganese