Amethyst (Digital/Conceptual Representation)
Amethyst (Silicon Dioxide with iron impurities, SiO2)
Category
Browse none specimens identified by the Rock Identifier community.
Amethyst (Digital/Conceptual Representation)
Amethyst (Silicon Dioxide with iron impurities, SiO2)
Chert Nodule (Fossiliferous Chert)
Microcrystalline Quartz (SiO2)
Yellow Agate
Silicon Dioxide (SiO2)
Amber
Succinite (fossilized resin)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Red Quartzite River Pebble
Quartzite (SiO2 with iron oxide inclusions)
Amethyst
Amethyst (Silicon Dioxide - SiO2)
Amethyst
SiO2 (Silicon Dioxide) - Purple variety of Quartz
Quartz (Milky or Pink-tinged)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Iron-Stained Quartz Pebble
Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Goethite) inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
River Pebbles (Tumbled Quartz and Basalt)
Silicon Dioxide (SiO2) for white quartz; Mafic Volcanic Rock for basalt
Milky Quartz with Mica inclusions
Quartz (Silicon Dioxide, SiO2)
Lodolite (Garden Quartz)
Silicon Dioxide (SiO2) with inclusions (Chlorite, Hematite, etc.)
Quartz Pebble
Silicon Dioxide (SiO2)
Black Onyx
Cryptocrystalline Chalcedony (SiO2)
Chert (with Quartz vein/coating)
Microcrystalline Quartz (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Turritella Agate
Silicified Elimia tenera Fossil (SiO2)
Banded Flint / Chert
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Chert
Chert (SiO2)
Chert (Chalcedony/Flint)
Silicon Dioxide (SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
Sandstone
Arenite (SiO2 principal)
Chert (with Manganese Dendrites)
Chert (Cryptocrystalline Quartz, SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Milky Quartz (Micro-specimen)
Silicon Dioxide (SiO2)
Red Sandstone
Arenite (high iron oxide content)
Beach Pebble (likely Quartz or Chalcedony)
Silicon Dioxide (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Clear Quartz Crystal (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Quartzite Pebble
Metamorphic rock predominantly composed of Quartz (SiO2)
Milky Quartz Pebble with Chert
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Coquina / Fossiliferous Limestone
Fossiliferous Calcarenite (Calcium carbonate, CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chert
Microcrystalline Quartz (SiO2)