Amber
Fossilized Tree Resin
gemstone
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
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Milky Quartz
Silicon Dioxide (SiO2)
mineral
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Mineraloid (Man-made Glass)
Pyrite
Iron Sulfide (FeS2)
mineral
Lepidolite with Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Aura Turquoise or Treated Turquoise Beads
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O) with metallic coating
gemstone
Fossilized Shark Tooth (Sand Tiger)
Carcharias sp. (Fossilized Tooth)
fossil
Tiger Shark Fossil Tooth
Galeocerdo cuvier (fossilized)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
gemstone
Pyrite
Iron Sulfide (FeS2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Jasper in Quartz / Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Carnelian
Chalcedony (Silicon Dioxide, SiO2)
mineral
Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
mineral
Banded Agate
Cryptocrystalline Quartz (SiO2)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Topaz (facetted in jewelry)
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
mineral
Fossilized Shark Tooth
Fossilized elasmobranch tooth (Apatite/Calcium Phosphate)
sedimentary
Polished pink feldspar or quartz pebble (uncertain)
Likely microcline feldspar (KAlSi₃O₈) or quartz (SiO₂), with iron-oxide inclusions
mineral
Tumbled quartz pebble, likely iron-stained quartz or citrine
Quartz (SiO₂), possibly ferruginous quartz or pale citrine
mineral
Labradorite
(Ca,Na)(Al,Si)4O8 (Plagioclase Feldspar)
mineral
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Malachite and Cuprite on Host Rock
Cu2CO3(OH)2 (Malachite) and Cu2O (Cuprite)
mineral
Citrine
Silicon Dioxide (Quartz variety), SiO2
mineral
Green Tourmaline (Verdelite)
Complex sodium iron aluminum borosilicate (Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH)4)
gemstone
Tumbled Rose Quartz
Silicon Dioxide (SiO2)
mineral
Sunstone (Feldspar)
Oligoclase / Labradorite (Plagioclase Feldspar Group, (Na,Ca)Al1-2Si2-3O8)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Hessonite Garnet (Grossular)
Ca3Al2(SiO4)3 (Grossular Garnet)
gemstone
Blue Apatite
Apatite Group (Ca5(PO4)3(F,Cl,OH))
mineral
Banded Agate
Silicon Dioxide (SiO2) - Chalcedony
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Sunstone (Feldspar variety)
Plagioclase Feldspar (Na,Ca)(Si,Al)3O8 with Hematite/Goethite inclusions
mineral
Lake Superior Agate
Silicon Dioxide (SiO2) - Banded Chalcedony
mineral
Amethyst
Silicon Dioxide (SiO2)
mineral
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
gemstone
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Staurolite
Staurolite (Fe2Al9O6(SiO4)4(O,OH)2)
mineral
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral