Blue Quartzite
Quartzite (primarily SiO2 with inclusions like Dumortierite or Magnesio-riebeckite)
metamorphic
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Quartz (SiO₂)
Mineral
Black Obsidian
Volcanic Glass (predominantly SiO2, Silicon Dioxide)
igneous
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Shale
Fissile Mudstone (primarily composed of phyllosilicate minerals like kaolinite, montmorillonite, and illite)
sedimentary
Wishing Stone (Basalt or Siltstone with Quartz/Calcite Vein)
Basalt (SiO2+MgO+FeO) or Siltstone with a Quartz (SiO2) or Calcite (CaCO3) vein
igneous or sedimentary
Red Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide with Iron inclusions (SiO2)
sedimentary
Shale
Argillaceous Rock
sedimentary
Pyrite on Quartz matrix
Iron Disulfide (FeS2) on Silicon Dioxide (SiO2)
mineral
Agate (specifically Moss or Plume Agate nodding toward Agatized Wood)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz (Chalcedony)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Smoky Quartz and Chalcedony Geode Fragment
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon dioxide (SiO2) with iron oxide impurities
mineral
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone (likely with Quartz Veining)
Arenite (primarily SiO2)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Breciated Limestone with Calcite Veins
Sedimentary Breccia (CaCO3)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Red Quartz (Ferruginous Quartz)
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
mineral
Jasper (specifically Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble (with Iron Inclusions)
Quartzite (primarily SiO2 with Fe2O3/FeOOH impurities)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
mineral
Mica Schist
Mica Schist (primarily Muscovite and Quartz composition)
metamorphic
Red Jasper
Microcrystalline quartz (SiO2) with Hematite (Fe2O3) impurities
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral