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

Emerald in Quartz Matrix (Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium) — gemstone

Emerald in Quartz Matrix

Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium

Citrine (Silicon Dioxide (SiO2)) — gemstone

Citrine

Silicon Dioxide (SiO2)

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

Amethyst (Rough)

Silicon Dioxide (SiO2) with iron impurities

Quartz Druzy on Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy on Matrix

Silicon Dioxide (SiO2)

Prehnite (Ca2Al2Si3O10(OH)2) — mineral

Prehnite

Ca2Al2Si3O10(OH)2

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Emerald in Matrix (Beryl (Be3Al2Si6O18)) — mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18)

Geode (Quartz / Chalcedony nodule with mineralized cavity) — sedimentary

Geode

Quartz / Chalcedony nodule with mineralized cavity

Tiger's Eye (Silicon dioxide with crocidolite inclusions (SiO2)) — mineral

Tiger's Eye

Silicon dioxide with crocidolite inclusions (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Amethyst (Silicon dioxide (SiO2)) — mineral

Amethyst

Silicon dioxide (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — mineral

Jasper

Microcrystalline Quartz (SiO2)

Amethyst (Quartz (Silicon Dioxide, SiO2)) — gemstone

Amethyst

Quartz (Silicon Dioxide, SiO2)

Geode (Quartz / Chalcedony nodule) — sedimentary

Geode

Quartz / Chalcedony nodule

Quartz (Chalcedony/Agate nodule) (Silicon dioxide (SiO2)) — mineral

Quartz (Chalcedony/Agate nodule)

Silicon dioxide (SiO2)

Lake Superior Agate (SiO2 (Quartz variety chalcedony)) — gemstone

Lake Superior Agate

SiO2 (Quartz variety chalcedony)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Peach Quartz (Silicon Dioxide (SiO2)) — mineral

Peach Quartz

Silicon Dioxide (SiO2)

Amethyst Cluster (Silicon Dioxide (Quartz variety: Amethyst) - SiO2) — mineral

Amethyst Cluster

Silicon Dioxide (Quartz variety: Amethyst) - SiO2

Pyrite in Quartz (Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)) — mineral

Pyrite in Quartz

Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Amethyst (Quartz (SiO2)) — mineral

Amethyst

Quartz (SiO2)

Blue Quartz (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Blue Quartz (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Lake Superior Agate (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Lake Superior Agate

Agate (Cryptocrystalline variety of Quartz, SiO2)

Precious Opal in Matrix (Hydrated Silica (SiO2·nH2O)) — mineral

Precious Opal in Matrix

Hydrated Silica (SiO2·nH2O)

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

Peridot

Olivine (Mg, Fe)2SiO4

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

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

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

Amazonite

Microcline (KAlSi3O8) with lead impurities

Citrine (Crystalline Quartz (SiO2) with iron impurities) — mineral

Citrine

Crystalline Quartz (SiO2) with iron impurities

Emerald (Beryl (Be3Al2(SiO3)6) with chromium/vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with chromium/vanadium impurities

Decorative gemstone bracelet or jewelry (Unidentifiable from the blurred image; likely colored glass or synthetic stones, possibly mixed gemstone beads) — gemstone

Decorative gemstone bracelet or jewelry

Unidentifiable from the blurred image; likely colored glass or synthetic stones, possibly mixed gemstone beads

Rhodochrosite (Manganese carbonate (MnCO3)) — mineral

Rhodochrosite

Manganese carbonate (MnCO3)

Probable fossil-bearing rock or mineral concretion (Unidentified carbonate-rich concretion with a possible fossil inclusion) — fossil

Probable fossil-bearing rock or mineral concretion

Unidentified carbonate-rich concretion with a possible fossil inclusion

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

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Crystal Cluster (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Quartz Crystal Cluster (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Carnelian Agate / Iron-Stained Quartz (SiO2) — Mineral

Carnelian Agate / Iron-Stained Quartz

SiO2

Amethyst and mixed gemstone bracelet (Amethyst: purple quartz, silicon dioxide (SiO₂); likely accompanied by other quartz or decorative mineral beads) — gemstone

Amethyst and mixed gemstone bracelet

Amethyst: purple quartz, silicon dioxide (SiO₂); likely accompanied by other quartz or decorative mineral beads

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

Red Jasper (Chert)

Silicon Dioxide (SiO2) with iron inclusions