Olivine (Peridot)
Olivine Group (Mg,Fe)2SiO4
Category
Browse igneous and sedimentary specimens identified by the Rock Identifier community.
Olivine (Peridot)
Olivine Group (Mg,Fe)2SiO4
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Labradorite (Dark or Black variety)
Labradorite (member of Plagioclase Feldspar group), (Na,Ca)(Si,Al)4O8
Gold Nugget
Native Gold (Au)
Lapis Lazuli
Tectosilicate (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2
Amazonite
Amazonite (KAlSi3O8)
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
Smoky Quartz
SiO2 (Silicon Dioxide with aluminum impurities)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Carnelian
Carnelian (SiO2)
Epidote with quartz/feldspar
Epidote, Ca2(Al,Fe)3(SiO4)3(OH)
Raw Corundum (Sapphire/Ruby variant)
Aluminum oxide (Al2O3)
Unakite
Epidotized Granite
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
Tourmaline (Multi-colored)
Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4
Fluorite
Calcium fluoride (CaF2)
Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Granite Gneiss or Granitoid River Rock
Granitoid / Gneiss
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Pink and Green Tourmaline (Tumbled)
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
Rose Quartz
Silicon Dioxide (SiO2)
Moonstone (Feldspar)
Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Amethyst
Silicon dioxide (SiO2) with iron impurities
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Carnelian
Cryptocrystalline Quartz (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Amazonite with Smoky Quartz and Feldspar
Microcline (KAlSi3O8) with Quartz (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Black Sand (Magnetite Sand)
Magnetite (Fe3O4)
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Greenschist
Greenschist facies rock (containing chlorite, actinolite, and epidote)
Yellow Quartz
Silicon Dioxide (SiO2)
Yellow Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
Chalcopyrite in Matrix
Chalcopyrite (CuFeS2)
Eudialyte
Eudialyte (Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2)