Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
sedimentary
Category
Synthetic (Not A Natural Rock)
Browse synthetic (not a natural rock) specimens identified by the Rock Identifier community.
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Granite Pebble
Granite (Phaneritic Igneous Rock)
igneous
Agate (Carnelian / Chalcedony pebble)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Sandstone with Liesegang Rings
Arenite with Iron Oxide Liesegang Banding
sedimentary
Pink Granite
Phaneritic intrusive igneous rock (Felsic)
igneous
Diamond Druzy (Crystalline Diamond)
Carbon (C)
mineral
Porphyritic Basalt
Porphyritic Basalt (containing Plagioclase or Alkali Feldspar phenocrysts)
igneous
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Granite Pebble
Phaneritic Felsic Igneous Rock (Granite)
igneous
Sandstone (likely Arkosic or Quartzose)
Arenite (SiO2 based with mineral inclusions)
sedimentary
Chert (Yellow Jasper)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Sandstone (with potential Quartzite characteristics)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (likely Graywacke or Siltstone variety)
Clastic Sedimentary Rock (SiO2 with assorted mineral fragments)
sedimentary
Sandstone (Quartz Arenite)
Sandstone (SiO2 with possible mineral cements)
sedimentary
Dyed Blue Agate Slice
Silicon Dioxide (SiO2)
mineral
Granite (Background) and Quartzite/River Pebble (Foreground Heart)
Phaneritic Felsic Igneous Rock (Granite background)
igneous
Unakite / Red Jasper beach pebble
Altered Granite (Epidotized Feldspar and Quartz)
metamorphic
Crescent Pebble
Weathered Quartzite or Sandstone Fragment
sedimentary
Dyed Agate
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite
sedimentary
Pumice
Pumice (Amorphous volcanic glass)
igneous
Sandstone (Ferruginous)
Arenite (Siliclastic Sedimentary Rock)
sedimentary
Quartz Pebble (River Agate / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone (likely Ferruginous)
Arenite (SiO2 based with Fe2O3/FeO(OH) cement)
sedimentary
Tumbled Stone Collection (featuring Tiger's Eye, Rose Quartz, and Moss Agate)
Mixed Silicates and Oxides (predominantly SiO2 group minerals)
mineral
Shale with Trace Fossils
Fissile mudrock (Shale)
sedimentary
Chert (and Jasper) Nodules in Limestone
Silicon Dioxide (SiO2) microcrystalline quartz
sedimentary
Herkimer Diamond
Quartz (Silicon Dioxide) - SiO2
mineral
Sandstone
Clastic sedimentary rock (primarily Quartz and Feldspar)
sedimentary
Sandstone
Arenite (SiO2-rich)
sedimentary
Dalmatian Jasper (Dyed Blue)
Peralkaline Rock with Arfvedsonite and Blue Dye
igneous
Purple Dyed Dalmatian Stone
Dyed Peralkaline Trachyte
igneous
Granite (Dioritic variant)
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Hag Stone
Perforated Quartz Pebble / Sedimentary Rock
sedimentary
Sandstone Pebble
Arenite (SiO2 dominated with iron oxide)
sedimentary
Sandstone
Sedimentary Rock (Quartz Arenite)
sedimentary
Sandstone
Arenite
sedimentary
Riverstone Quartzite (Water-worn Siltstone/Quartzite)
Metamorphosed Quartz-rich Arenite (SiO2)
metamorphic
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
sedimentary
Brachiopod Fossil (Spiriferid)
Order Spiriferida (Phylum Brachiopoda); mineralized as Calcite (CaCO3) or Chert (SiO2)
sedimentary (fossilized organic remain)