Quartz (Milky Quartz / Quartzite)
Silicon Dioxide (SiO2)
mineral
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Learn about Mineral Or Sedimentary Rock (With Mineral Inclusions) in the encyclopedia
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Sandstone (Ferruginous)
Arenite (Fe2O3 enriched)
sedimentary
Red Jasper (Beach Pebble)
SiO2 (Microcrystalline Quartz with Hematite inclusions)
sedimentary
Weathered brown rock fragment
Indeterminate; possibly ferruginous sandstone or weathered volcanic rock
sedimentary
Blue-gray quartz-bearing metamorphic rock (likely gneiss or schist)
Quartz–feldspar–mica rock; exact identification requires testing
metamorphic
Milky quartz in weathered host rock
Quartz, SiO₂; likely a quartz vein in altered country rock
mineral
Tumbled quartz (likely rose quartz or included quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Yellow Quartz / Chalcedony
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Agate (Moss or Green Agate)
Silicon Dioxide (SiO2)
mineral
Sandstone (Pebble)
Clastic sedimentary rock (SiO2 primary)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite (SiO2 based with mineral cement)
sedimentary
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
mineral
Dalmatian Stone
Peralkaline rhyolite with arfvedsonite inclusions
igneous
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
mineral
Barite Rose
Barium Sulfate (BaSO4)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartz-rich)
Arenite (composed primarily of SiO2)
sedimentary
Amethyst (Geode/Druzy)
Silicon Dioxide (SiO2) with iron impurities
mineral
Green Jasper
Microcrystalline Quartz (Chalcedony), SiO2
sedimentary
Leopard Skin Jasper
SiO2 (Microcrystalline Quartz with inclusions)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite inclusions
sedimentary
Sandstone (Quartz-rich)
Arenite (Quartz Arenite)
sedimentary
Amber (likely a small rough amber piece)
Fossilized plant resin; amber is an organic mineraloid, not a crystalline mineral
gemstone
Carnelian
Chalcedony (SiO2) with Iron Oxide inclusions
mineral
Sandstone with Iron Oxide
Arenite (SiO2 with Fe2O3 inclusions)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Blue-green rough mineral specimen (identity uncertain)
Undetermined; the image is insufficient for a reliable mineral identification
mineral
Coprolite
Coprolite (fossilized feces)
fossil
Sandstone (Pebble/Cobble)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Quartz with Sericite and Cinnabar
Silicon Dioxide (SiO2) with muscovite/sericite and mercury sulfide (HgS)
mineral
Sandstone (with Iron Staining)
Clastic sedimentary rock (SiO2 with Fe2O3 impurities)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary