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

Amethyst (Amethyst (Silicon Dioxide, SiO2 with Iron impurities)) — gemstone

Amethyst

Amethyst (Silicon Dioxide, SiO2 with Iron impurities)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Pink Sapphire (Corundum) (Aluminum Oxide (Al2O3) with Chromium/Iron impurities) — gemstone

Pink Sapphire (Corundum)

Aluminum Oxide (Al2O3) with Chromium/Iron impurities

Amber (Succiniferous fossil resin (C10H16O)) — gemstone

Amber

Succiniferous fossil resin (C10H16O)

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

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

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

Green Onyx

Chalcedony (Silicon Dioxide, SiO2)

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

Aquamarine (Beryl) Beads

Beryllium aluminum silicate (Be3Al2Si6O18)

Diamond (Native Carbon (C)) — gemstone

Diamond

Native Carbon (C)

Blue Lace Agate (Beads) (Silicon dioxide (SiO2) - Variety of Chalcedony) — gemstone

Blue Lace Agate (Beads)

Silicon dioxide (SiO2) - Variety of Chalcedony

Blue Lace Agate (Silicon Dioxide (SiO2)) — gemstone

Blue Lace Agate

Silicon Dioxide (SiO2)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese) — gemstone

Rose Quartz

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

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — gemstone

Rose Quartz

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

Aquamarine (Beryllium Aluminum Silicate (Be3Al2Si6O18)) — gemstone

Aquamarine

Beryllium Aluminum Silicate (Be3Al2Si6O18)

Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — gemstone

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Dream Amethyst (Chevron Amethyst) (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Dream Amethyst (Chevron Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Carnelian (SiO2 (Silicon Dioxide)) — gemstone

Carnelian

SiO2 (Silicon Dioxide)

Garnet (Almandine) (Almandine Garnet (Fe3Al2(SiO4)3)) — gemstone

Garnet (Almandine)

Almandine Garnet (Fe3Al2(SiO4)3)

Orange Sapphire (Corundum (Al2O3 with trace elements)) — gemstone

Orange Sapphire

Corundum (Al2O3 with trace elements)

Amethyst (Crystalline Quartz (SiO2 with iron impurities)) — gemstone

Amethyst

Crystalline Quartz (SiO2 with iron impurities)

Jasper and Agate Beads (Mahogany Obsidian, Dyed Agate, Turquoise/African Turquoise) (Silicon Dioxide (SiO2) mixture with inclusions / Hydrated Copper Aluminum Phosphate) — gemstone

Jasper and Agate Beads (Mahogany Obsidian, Dyed Agate, Turquoise/African Turquoise)

Silicon Dioxide (SiO2) mixture with inclusions / Hydrated Copper Aluminum Phosphate

Sardonyx / Carnelian Agate (SiO2 (Silicon Dioxide - Microcrystalline Quartz)) — gemstone

Sardonyx / Carnelian Agate

SiO2 (Silicon Dioxide - Microcrystalline Quartz)

Citrine Quartz (or Heat-Treated Amethyst / Smoky Quartz) (Silicon Dioxide (SiO2)) — gemstone

Citrine Quartz (or Heat-Treated Amethyst / Smoky Quartz)

Silicon Dioxide (SiO2)

Raw Garnet (Hessonite / Spessartine) (Silicate mineral group (X3Y2(SiO4)3)) — gemstone

Raw Garnet (Hessonite / Spessartine)

Silicate mineral group (X3Y2(SiO4)3)

Carnelian (Polished Beads) (SiO2 (Silicon Dioxide - Microcrystalline Quartz)) — gemstone

Carnelian (Polished Beads)

SiO2 (Silicon Dioxide - Microcrystalline Quartz)

Diamond (Diamond (C)) — gemstone

Diamond

Diamond (C)

Diamond (Diamond (C - Pure Carbon)) — gemstone

Diamond

Diamond (C - Pure Carbon)

Aquamarine (Beryl (Be3Al2Si6O18)) — gemstone

Aquamarine

Beryl (Be3Al2Si6O18)

Rose Quartz (Silicon Dioxide (SiO2)) — gemstone

Rose Quartz

Silicon Dioxide (SiO2)

Carnelian (Tumbled Chalcedony) (Silicon Dioxide (SiO2)) — gemstone

Carnelian (Tumbled Chalcedony)

Silicon Dioxide (SiO2)

Amber (Succinite (C10H16O)) — gemstone

Amber

Succinite (C10H16O)

Diamond (set in a eternity ring band) (Carbon (C)) — gemstone

Diamond (set in a eternity ring band)

Carbon (C)

Diamond (C (Native Carbon)) — gemstone

Diamond

C (Native Carbon)

Diamond (in Ring Setting) (Diamond (Pure Carbon, C)) — gemstone

Diamond (in Ring Setting)

Diamond (Pure Carbon, C)

Peridot (Olivine) (Magnesium Iron Silicate (Mg,Fe)2SiO4) — gemstone

Peridot (Olivine)

Magnesium Iron Silicate (Mg,Fe)2SiO4

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

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

Emerald in Quartz Matrix

Beryl (Be3Al2Si6O18) with Chromium trace elements

Rose Quartz Beads (Crystalline Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — gemstone

Rose Quartz Beads

Crystalline Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Banded Agate (Cryptocrystalline Silicon Dioxide (SiO2)) — gemstone

Banded Agate

Cryptocrystalline Silicon Dioxide (SiO2)

Blue Sapphire (Corundum (Al2O3)) — gemstone

Blue Sapphire

Corundum (Al2O3)

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Ruby (Corundum (Al2O3)) — gemstone

Ruby

Corundum (Al2O3)