White Quartz
Silicon Dioxide (SiO2)
Category
Browse sedimentary mineral specimens identified by the Rock Identifier community.
White Quartz
Silicon Dioxide (SiO2)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Green Calcite
Calcium Carbonate (CaCO3)
Jasper
Jasper (Silica/Quartz) - SiO2
Dendritic Agate / Moss Agate
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
Amber
Succinite (a fossilized organic resin)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Blue Chalcedony
Silicon Dioxide (SiO2)
Dyed Agate
Silicon Dioxide (SiO2)
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
Quartz / Common Opal
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Agate
Chalcedony (Silicon Dioxide, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Yellow Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
Chalcedony (Common Agate)
Silicon Dioxide (SiO2)
Chalcedony Nodule (Agate/Chert)
Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Quartz / Common Agate
Silicon Dioxide (SiO2)
Carnelian Agate
Silicon Dioxide (SiO2)
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
Ferruginous Sandstone (Grit)
Clastic Sedimentary (Ironstone-rich Sandstone)
Kambaba Jasper
Stromatolite (Fossilized Algae within Microcrystalline Quartz)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and other impurities
Red Sandstone
Clastic Terrigenous Sedimentary Rock (primarily SiO2 with Fe2O3 coating)
Ferruginous Sandstone (Ironstone)
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
Yellow Jasper (Mookaite style)
Silicon Dioxide (SiO2) with Goethite/Hematite inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Zebra Jasper
Silicon Dioxide (SiO2) with impurities; typically a form of Chalcedony/Microcrystalline Quartz
Jasper
Silicon dioxide (SiO2) with iron oxide and clay inclusions
Botryoidal Chalcedony (Druzy Quartz)
Silicon Dioxide (SiO2)
Rough Precious Opal
Hydrated Silica (SiO2·nH2O)
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (SiO2 + Fe2O3)