Sandstone
Arenite
Category
Browse man made byproduct (non geological) specimens identified by the Rock Identifier community.
Sandstone
Arenite
Dragon Vein Agate
Silicon Dioxide (SiO2)
Chert (often called Flint when dark or worked)
Cryptocrystalline silica (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Serpentine (Serpentinite)
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Rose Quartz
Silicon Dioxide with trace inclusions (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and organic impurities
Chalcedony (specifically Agate or Moonstone-like Quartz)
Silicon Dioxide (SiO2)
Agate (Nodule/Chert)
Silicon Dioxide (SiO2)
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
Chert / Flint
Microcrystalline Quartz (SiO2)
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides
Pink Quartzite
Silica (SiO2) - Metamorphic rock
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
Quartzite
Quartzite (primarily SiO2)
Yellow Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Quartzite
Quartzite (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Quartzite (River Pebble)
Meta-quartzite (composed primarily of SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Quartz / Quartzite Fragment
Silicon Dioxide (SiO2)
Limonite with Iron Inclusions
Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)
Green Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe)
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
Citrine Quartz
Silicon Dioxide (SiO2)
Tree Agate
Silicon Dioxide (SiO2) with Dendritic Inclusions
Native Gold (in the form of jewelry)
Gold (Au)