Citrine
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Gemstone)
Browse mineral (gemstone) specimens identified by the Rock Identifier community.
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Amethyst Geode
Silicon Dioxide (SiO2) - Amethyst variety of Quartz
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Heated Citrine (Heat-Treated Amethyst)
Silicon Dioxide (SiO2), quartz variety
mineral
Orange Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Red Quartz
Silicon Dioxide (SiO2) with hematite inclusions
mineral
Carnelian / Agate
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Green Jasper / Bloodstone
SiO2 (Microcrystalline Quartz)
mineral
Quartz (Rose Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Rock
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Amazonite
Microcline feldspar (KAlSi3O8)
mineral
White Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Amazonite
Microcline Feldspar (KAlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
mineral
Amethyst
Silicon Dioxide (SiO2) with trace Iron (Fe)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Variscite in Matrix (often traded as Wardite or Cryptocrystalline Variscite)
Variscite (AlPO4·2H2O)
mineral
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Tumbled carnelian
Carnelian, orange chalcedony (microcrystalline SiO₂)
gemstone
Black tourmaline (schorl)
Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
mineral
Smoky quartz crystal
Quartz (SiO₂), naturally irradiated smoky variety
mineral
Rose quartz (rough fragment)
Quartz, silicon dioxide (SiO₂), pink variety
mineral
Amethyst (Rough)
Amethyst (SiO2 with Iron impurities)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
gemstone
Amazonite
K(AlSi3O8), Microcline Feldspar
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium, Iron, or Manganese
mineral
Amethyst
Silicon Dioxide with iron impurities (SiO2)
mineral
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
gemstone
Strawberry Quartz (Hematoid Quartz)
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
mineral
Amethyst
Silicon Dioxide (SiO2)
mineral