Gold Nugget
Gold (Au)
mineral
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
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Picture Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Aquamarine
Beryl (Be3Al2Si6O18)
gemstone
Tumbled Sunstone
Feldspar group (Oligoclase)
gemstone
Amethyst
Quartz (Silicon Dioxide, SiO2)
gemstone
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide, SiO2
mineral
Geode
Silicon dioxide (Quartz/Chalcedony nodule)
sedimentary
Peridot
Olivine ((Mg,Fe)2SiO4)
gemstone
Grape Agate
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (Quartz variety), SiO2
mineral
Amethyst
Quartz (SiO2)
gemstone
Amethyst
Quartz (SiO2)
gemstone
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Tumbled Gemstones Set
Mixed Quartz and Silicate Varieties
gemstone
Amethyst
Silicon Dioxide (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
gemstone
Citrine
Silicon Dioxide (Quartz variety), SiO2
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Aquamarine
Beryllium Aluminum Silicate, Be3Al2(SiO3)6
gemstone
Green Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Likely sodalite (rough blue specimen)
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Amethyst
Quartz (Silicon Dioxide, SiO2)
gemstone
Aquamarine
Beryl (Be3Al2Si6O18)
gemstone
Tourmalinated Quartz
Silicon dioxide with sodium aluminum borosilicate (SiO2 + Na(Al,Fe,Li)3Al6(BO3)3Si6O18(OH)4)
mineral
Clear quartz crystal cluster
Quartz, silicon dioxide (SiO₂)
mineral
Tangerine Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite coatings
mineral
Amethyst and Smoky Quartz (Tumbled)
Silicon Dioxide (SiO2) with trace impurities iron (Amethyst) and aluminum/radiation (Smoky Quartz)
mineral
Chalcedony / Agate Nodule
Silicon Dioxide (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Amethyst Cluster
Silicon Dioxide (SiO2) with iron impurities
mineral
Bumblebee Jasper
Anhydrous Calcium Carbonate with Sulfur and Arsenic (Orpiment/Realgar)
sedimentary
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Smoky Quartz in Matrix
Silicon Dioxide (SiO2)
mineral
Emerald
Beryl (Be3Al2(SiO3)6)
gemstone
Jasper
Silicon dioxide (Quartz variety), SiO2
sedimentary
Emerald (or possibly Green Glass / Slag)
Beryl (Be3Al2(SiO3)6)
gemstone
Jasper and Agate Mix
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary