Rock Identifier

Category

Mineral, Jewelry

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

Green Quartz (Prasiolite/Adventurine/Jasper) (Silicon Dioxide (SiO2)) — mineral

Green Quartz (Prasiolite/Adventurine/Jasper)

Silicon Dioxide (SiO2)

mineral
Green Tourmaline (Verdelite (Silicate mineral); Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) — mineral

Green Tourmaline

Verdelite (Silicate mineral); Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

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

Black Opal

Hydrated Amorphous Silica (SiO2·nH2O)

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

Gold Nugget

Native Gold (Au)

mineral
Orbicular Jasper (Silicon Dioxide (SiO2), variety of Chalcedony) — Mineral

Orbicular Jasper

Silicon Dioxide (SiO2), variety of Chalcedony

Mineral
Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

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

Clear Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz

Silicon Dioxide (SiO2)

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

Druzzy Quartz on Matrix

Silicon Dioxide (SiO2)

mineral
Amethyst (Silicon Dioxide with trace inclusions of Iron (SiO2)) — mineral

Amethyst

Silicon Dioxide with trace inclusions of Iron (SiO2)

mineral
Rough Emerald (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — mineral

Rough Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

mineral
Moonstone (Orthoclase/Albite (KAlSi3O8 / NaAlSi3O8) with Adularescence) — mineral

Moonstone

Orthoclase/Albite (KAlSi3O8 / NaAlSi3O8) with Adularescence

mineral
Emerald in Matrix (Quartz/Schist) (Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities) — mineral

Emerald in Matrix (Quartz/Schist)

Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities

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

Quartz Geode (Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

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

Rose Quartz

Quartz (Silicon Dioxide) - SiO2

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

Amethyst

Amethyst (SiO2 - Silicon Dioxide with iron impurities)

Mineral
Rhodonite (Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3

mineral
Fossilized Coral (Anthozoa (Fossilized)) — Sedimentary / Fossil

Fossilized Coral

Anthozoa (Fossilized)

Sedimentary / Fossil
Hematite (Hematite (Fe2O3)) — Mineral

Hematite

Hematite (Fe2O3)

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

Peridot

Olivine (Mg, Fe)2SiO4

Mineral
Diamond (Round Brilliant Cut) (Diamond (Pure Carbon, C)) — mineral

Diamond (Round Brilliant Cut)

Diamond (Pure Carbon, C)

mineral
Ocean Jasper (Orbicular Jasper) (Silicon Dioxide (SiO2) with iron and magnesium inclusions) — mineral

Ocean Jasper (Orbicular Jasper)

Silicon Dioxide (SiO2) with iron and magnesium inclusions

mineral
Amethyst (Digital/Conceptual Representation) (Amethyst (Silicon Dioxide with iron impurities, SiO2)) — mineral

Amethyst (Digital/Conceptual Representation)

Amethyst (Silicon Dioxide with iron impurities, SiO2)

mineral
Cobaltian Calcite (Cobaltoan Calcite) (Cobalt-bearing Calcite (Ca,Co)CO3) — mineral

Cobaltian Calcite (Cobaltoan Calcite)

Cobalt-bearing Calcite (Ca,Co)CO3

mineral
Clear Quartz Point (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Point

Silicon Dioxide (SiO2)

mineral
Herkimer Diamond (Quartz (Silicon Dioxide, SiO2)) — mineral

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

mineral
Carnelian Agate (Silicon Dioxide (SiO2) with iron oxide impurities) — Mineral

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide impurities

Mineral
Raw Citrine (Citrine (Silicon Dioxide - SiO2)) — mineral

Raw Citrine

Citrine (Silicon Dioxide - SiO2)

mineral
Aquamarine (Beryl (Be3Al2Si6O18 with Iron traces)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with Iron traces)

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

Amethyst

Amethyst (Silicon Dioxide, SiO2)

mineral
Flower Agate (Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2) — mineral

Flower Agate

Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2

mineral
Amazonite (Potassium Feldspar (Microcline) - KAlSi3O8) — mineral

Amazonite

Potassium Feldspar (Microcline) - KAlSi3O8

mineral
Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

mineral
Yellow Citrine Quartz (Silicon Dioxide (SiO₂)) — mineral

Yellow Citrine Quartz

Silicon Dioxide (SiO₂)

mineral
Emerald in Matrix (Emerald (Beryllium Aluminum Silicate), Be3Al2(SiO3)6) — mineral

Emerald in Matrix

Emerald (Beryllium Aluminum Silicate), Be3Al2(SiO3)6

mineral
Hematoid Quartz (Ferruginous Quartz (SiO2 with Fe2O3 inclusions)) — mineral

Hematoid Quartz

Ferruginous Quartz (SiO2 with Fe2O3 inclusions)

mineral
Citrine (Quartz (SiO₂)) — Mineral

Citrine

Quartz (SiO₂)

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

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

mineral
Yellow Quartz (Citrine or Iron-Stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

mineral
Alexandrite in Matrix (Chrysoberyl (BeAl2O4 with Chromium impurities)) — mineral

Alexandrite in Matrix

Chrysoberyl (BeAl2O4 with Chromium impurities)

mineral
Amethyst (Chevron or Banded) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Chevron or Banded)

Silicon Dioxide (SiO2) with iron impurities

mineral
Tiger's Eye (Multicolor/Variegated) (Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)) — mineral

Tiger's Eye (Multicolor/Variegated)

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)

mineral