Kunzite
Spodumene (LiAlSi2O6)
mineral
Category
Gemstone
Browse gemstone specimens identified by the Rock Identifier community.
Cavansite
Cavansite (Ca(VO)Si4O10·4H2O)
mineral
Epidotite (Unakite variety)
Epidotized Granite (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))
metamorphic
Amazonite
Potassium feldspar (Microcline), K(AlSi3O8)
mineral
Clear/White Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Amethyst
Silicon Dioxide (SiO2)
mineral
Red Hematite (Iron Ore)
Hematite (Fe2O3)
mineral
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Amethyst
Silicon dioxide (SiO2) containing traces of iron and manganese
mineral
Lapis Lazuli
Lapis lazuli (primary component: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Beryl (Variety: Aquamarine/Green Beryl)
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Red Chert (Jasper)
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Rough Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium
mineral
Green Aventurine (Tumbled)
Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Hypersthene
Hypersthene (Enstatite variety), (Mg,Fe)SiO3
Mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO2)
Mineral (variety of Chalcedony)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Amethyst and Hematite Bracelet
Amethyst (SiO2) and Hematite (Fe2O3)
mineral
Chert (specifically Jasper or Flint variant)
Cryptocrystalline Quartz (SiO2)
sedimentary
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
mineral
Epidote in Matrix (likely Amphibolite or Gneiss)
Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)) in Metamorphic Matrix
metamorphic
Epidote with Magnetite/Hematite inclusions
Epidote (Ca2(Al2,Fe3+)(SiO4)3(OH)) with Iron Oxides
mineral
Chert (variations include Flint or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Red Quartzite (Ferruginous Quartz)
Quartzite (SiO2 with Fe2O3 inclusions)
metamorphic
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Amethyst Quartz (Tumbled)
Amethyst (Silicon Dioxide with iron impurities, SiO2)
mineral
Quartz (Milky or Smoky Quartz)
Silicon Dioxide (SiO2)
mineral
Red Jasper (Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Dalmatian Jasper (Dalmatian Stone)
Perthitic feldspar with Arfvedsonite inclusions
igneous
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Unakite
Unakite Epidosite (Granite with epidote and orthoclase)
metamorphic
Chert (Green variety)
Silicon Dioxide (SiO2)
sedimentary
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2)
metamorphic
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with inclusions of Dumortierite or similar minerals
mineral
Dalmatian Stone
Peralkaline Quartz-Feldspar Rock
igneous