Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Category
Not A Natural Rock
Browse not a natural rock specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzite-rich Pebble)
Arenite (primarily SiO2)
sedimentary
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Sandstone (with Iron concretions/staining)
Arenite (composed primarily of Quartz and Feldspar with Iron Oxide cement)
sedimentary
Chert Conglomerate (or Breccia)
Sedimentary Clastic Rock (variety: Ferruginous Chert Breccia)
sedimentary
Granite (Weathered)
Plutonic Igneous Rock (Granitic)
igneous
Granite
Granite (Phaneritic Igneous Rock)
igneous
Sandstone (Grooved/Weathered)
Arenite (composed primarily of Quartz and Lithic fragments)
sedimentary
Amethyst (Agate/Chalcedony variety)
Silicon Dioxide (SiO2) with iron impurities
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions
metamorphic
Sandstone (Quartzose type)
Arenite (primarily SiO2)
sedimentary
Sandstone (likely Arkosic or Quartzose)
Arenite (SiO2 based with mineral inclusions)
sedimentary
Porphyritic Basalt
Porphyritic Basalt (containing Plagioclase or Alkali Feldspar phenocrysts)
igneous
Diamond Druzy (Crystalline Diamond)
Carbon (C)
mineral
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)
Conglomerate
Clastic sedimentary rock (Puddingstone)
sedimentary
Sandstone (Quartz Arenite)
Sandstone (SiO2 with possible mineral cements)
sedimentary
Sandstone
Arenite
sedimentary
Pink Dyed Agate
Silicon Dioxide (SiO2) with synthetic pigment
mineral
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Phaneritic plutonic rock (Felsic)
igneous
Sandstone (Quartz-rich)
Arenite (SiO2 based)
sedimentary
Blue Howlite (Dyed)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Dyed Agate
Silicon Dioxide (SiO2)
mineral
Granite (Background) and Quartzite/River Pebble (Foreground Heart)
Phaneritic Felsic Igneous Rock (Granite background)
igneous
Blue Sapphire
Corundum (Al2O3) with traces of Iron and Titanium
mineral
Blue Lace Agate (Heat-treated/Crackle Quartz variety)
Silicon Dioxide (SiO2)
mineral
Chert (Holey Stone)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (Quartz-rich)
Arenite (SiO2)
sedimentary
Granite
Granite (phaneritic intrusive igneous rock consisting of quartz, feldspar, and mica)
igneous
Sandstone (Ferruginous)
Sandstone (SiO2 with iron oxide inclusions)
sedimentary
Sandstone (Ferruginous)
Arenite (with Hematite/Limonite cement)
sedimentary
Sandstone (Quartzose)
Arenite (SiO2 principal)
sedimentary
Amethyst (Variety of Quartz)
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral