Amazonite
Potassium Feldspar (KAlSi3O8) with lead impurities
Category
Browse organic gemstone (fossilized resin) specimens identified by the Rock Identifier community.
Amazonite
Potassium Feldspar (KAlSi3O8) with lead impurities
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Chrysocolla
Hydrated copper silicates (Cu,Al)2H2Si2O5(OH)4·nH2O
Tiger's Eye
Tiger's Eye (SiO2 with crocidolite inclusions)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Fluorite, Turquoise, and Calcite set
Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper with Epidote (Unakite-related)
Epidotized Quartzite (composed of Quartz, Epidote, and Feldspar)
Quartz (Milky or Smoky Quartz)
Quartz (Silicon Dioxide, SiO2)
Carnelian (Red-Orange Chalcedony)
Silicon Dioxide (SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Beryl (likely Aquamarine or Green Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
Chrysocolla
Chrysocolla, (Cu, Al)2H2Si2O5(OH)4·nH2O
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Rough Emerald
Emerald (Beryl), Be3Al2(SiO3)6
Amethyst (Geode Fragment)
Silicon Dioxide (SiO2 with iron impurities)
Blue Lace Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Chrysocolla and Malachite Beads
Hydrated copper silicates (Chrysocolla) and Copper carbonate hydroxide (Malachite)
Rose Quartz
Silicon dioxide (SiO2) with trace titanium, manganese, or iron
Raw Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
Moonstone
Orthoclase Feldspar (formula: (K,Na)AlSi3O8)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Sunstone (Orthoclase Feldspar variant)
Orthoclase (KAlSi3O8) with inclusions
Sunstone
Aventurine Feldspar (Plagioclase Feldspar with inclusions)
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Pearl
Aragonite (CaCO3) with Conchiolin
Yellow Jade (Yellow Chalcedony/Quartz)
Silicon Dioxide (SiO2)
Jasper
Jasper (Cryptocrystalline Quartz, SiO2)
Carnelian Agate
Carnelian (Silicon Dioxide - SiO2 with Fe impurities)
Sunstone
Heliolite (Sodium Calcium Aluminum Silicate with Iron or Copper inclusions)
Smoky Quartz
Silicon Dioxide (SiO2)
Diamond (in jewelry setting)
Carbon (C)
Banded Chalcedony (Agate)
Chalcedony (SiO2) - Cryptocrystalline Quartz
Moonstone
Adularia (Potassium Aluminum Silicate, KAlSi3O8)
Diamond (in jewelry setting)
Adamantine Carbon (C)
Rose Quartz
Silicon Dioxide (SiO2)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Blue Kyanite
Kyanite (Al2SiO5)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities