Zebra Jasper
Opaque microcrystalline Quartz (SiO2) with impurities
sedimentary
Category
Marble
Browse marble specimens identified by the Rock Identifier community.
Granite
Granite (Felsic Plutonic Rock / SiO2 + Al2O3)
igneous
Pink Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Metamorphosed Quartz Arenite (SiO2)
metamorphic
Quartzite with Iron Inclusions
Metamorphosed Quartz-rich Rock (SiO2 with Fe2O3)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
mineral
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Green Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Ruby and Diamond Heart Pendant
Corundum (Al2O3) and Diamond (C)
mineral
Larimar
Pectolite (NaCa2Si3O8(OH))
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
gemstone
Quartzite with Iron Inclusions
Metamorphosed Quartz-Rich Sandstone (SiO2 with Fe2O3)
metamorphic
Quartzite
Quartzite (principally Silicon Dioxide, SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Gneiss (Metamorphic Cobble)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Moqui Marble (Concretion)
Iron Oxide Concretion (Hematite/Goethite)
sedimentary
Ruby
Corundum (Al2O3:Cr)
gemstone
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Fluorite, Turquoise, and Calcite set
Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)
mineral
Lapis Lazuli (polished cabochon)
Lazurite-rich metamorphic rock (approx. Na6Ca2Al6Si6O24(SO4,S,Cl)2)
metamorphic
Rough Green Sapphire (Corundum)
Corundum (Al2O3 - Aluminum Oxide with trace elements)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Lapis Lazuli
Lapis Lazuli (aggregate of Lazurite, Calcite, and Pyrite)
metamorphic
Ruby
Corundum (Al2O3)
mineral
Blue Sapphire
Corundum (Al2O3) with iron and titanium impurities
mineral
Lapis Lazuli
Complex metamorphic rock containing Lazurite ((Na,Ca)8(AlSiO4)6(SO4,S,Cl)2), Calcite, and Pyrite
metamorphic
Sapphire
Corundum (Al2O3)
Mineral
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
mineral
Lapis Lazuli
Lapis Lazuli (Primary mineral: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
metamorphic
Honey Calcite (Orange Onyx)
Calcium Carbonate (CaCO3)
mineral
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
mineral
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic