Rock Identifier

Category

Gemstone

Browse gemstone specimens identified by the Rock Identifier community.

Learn about Gemstone in the encyclopedia

Achroite

Alexandrite

Almandine Garnet

Almandine Garnet

Amber

Andamooka Opal

Andesine

Andesine-Labradorite

Andesine-Labradorite

Andradite Garnet

Andradite Garnet

Ant Hill Garnet

Ant Hill Garnet

Aquamarine

Australian Opal

Australian Opal

Aventurine Feldspar

Aventurine Feldspar

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (Natural Diamond (Carbon, C)) — gemstone

Diamond

Natural Diamond (Carbon, C)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (Natural Diamond (Carbon, C)) — gemstone

Diamond

Natural Diamond (Carbon, C)

Yellow Topaz (Al2SiO4(F,OH)2) — gemstone

Yellow Topaz

Al2SiO4(F,OH)2

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (or Simulant) (Carbon (C)) — gemstone

Diamond (or Simulant)

Carbon (C)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Ruby (Faceted) (Corundum (Al2O3 with Cr trace elements)) — gemstone

Ruby (Faceted)

Corundum (Al2O3 with Cr trace elements)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Amber (Rough) (Succinite (Resinite)) — gemstone

Amber (Rough)

Succinite (Resinite)

Sapphire (Corundum (Al2O3)) — gemstone

Sapphire

Corundum (Al2O3)

Tanzanite (Blue-violet Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))) — gemstone

Tanzanite

Blue-violet Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))

Green Aventurine (Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)) — gemstone

Green Aventurine

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

Citrine (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Citrine

Silicon Dioxide (SiO2) with iron impurities

Cubic Zirconia (Jewelry Setting) (Cubic Zirconia (ZrO2)) — gemstone

Cubic Zirconia (Jewelry Setting)

Cubic Zirconia (ZrO2)

Black Onyx (Chalcedony (Silicon Dioxide, SiO2)) — gemstone

Black Onyx

Chalcedony (Silicon Dioxide, SiO2)

Botswana Agate (Banded Chalcedony (SiO2)) — gemstone

Botswana Agate

Banded Chalcedony (SiO2)

Diamond (Heart Cut) (Carbon (C)) — gemstone

Diamond (Heart Cut)

Carbon (C)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Red Tiger's Eye (Pseudomorph of Quartz after Crocidolite (Silicon Dioxide: SiO2)) — gemstone

Red Tiger's Eye

Pseudomorph of Quartz after Crocidolite (Silicon Dioxide: SiO2)

Diamond (Native Carbon (C)) — gemstone

Diamond

Native Carbon (C)

Goldstone (Brown/Gold) (Aventurine Glass (Man-made glass with Copper inclusions)) — gemstone

Goldstone (Brown/Gold)

Aventurine Glass (Man-made glass with Copper inclusions)

Opalite (Synthetic Glass (Silica-based)) — gemstone

Opalite

Synthetic Glass (Silica-based)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Blue Topaz (Aluminum Silicate Fluoride Hydroxide - Al2SiO4(F,OH)2) — gemstone

Blue Topaz

Aluminum Silicate Fluoride Hydroxide - Al2SiO4(F,OH)2

Amber (Succinite (C10H16O)) — gemstone

Amber

Succinite (C10H16O)

Carnelian (Polished Cabochon) (Silicon Dioxide (SiO2) with iron oxide impurities) — gemstone

Carnelian (Polished Cabochon)

Silicon Dioxide (SiO2) with iron oxide impurities

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (or Diamond Simulant) (Carbon (C)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C)

Diamond (Natural Diamond (Carbon, C)) — gemstone

Diamond

Natural Diamond (Carbon, C)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (or Simulant) (Carbon (C)) — gemstone

Diamond (or Simulant)

Carbon (C)

Diamond (or Cubic Zirconia) (Carbon (C) or Zirconium Dioxide (ZrO2)) — gemstone

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (Faceted) (Carbon (C)) — gemstone

Diamond (Faceted)

Carbon (C)

Cubic Zirconia (CZ) (Cubic Zirconium Dioxide (ZrO2)) — gemstone

Cubic Zirconia (CZ)

Cubic Zirconium Dioxide (ZrO2)

Dzi Bead Necklace (Agate/Carnelian) (Chalcedony (cryptocrystalline Quartz), SiO2) — gemstone

Dzi Bead Necklace (Agate/Carnelian)

Chalcedony (cryptocrystalline Quartz), SiO2

Carnelian (Carnelian Agate (SiO2)) — gemstone

Carnelian

Carnelian Agate (SiO2)