Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
Category
Browse mineral on sedimentary specimens identified by the Rock Identifier community.
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
Milky Quartz in Matrix
Silicon Dioxide (SiO2)
Emerald
Beryl (Be₃Al₂(SiO₃)‑₆) with Chromium/Vanadium impurities
Jasper with Iron Staining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Concretion with Quartz Veining
Septarian Concretion (CaCO3 / SiO2)
Mica Schist
Mica Schist (primarily composed of Muscovite/Biotite)
Limonite
FeO(OH)·nH2O (Hydrated iron oxide)
Conglomerate
Conglomerate (clastic sedimentary rock)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Jasper (specifically Yellow/Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
Gneiss (Banded Gneiss)
Gneiss
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Sandstone (lithic wacke)
Arenite / Lithic Wacke (mostly SiO2 with rock fragments)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily SiO2)
Ferruginous Sandstone (Ironstone Nodules)
Ferruginous Sandstone with Limonite/Goethite coating (Fe2O3·H2O)
Red Sandstone
Arenite (predominantly Quartz with Hematite cementation)
Red Sandstone
Arenite
Quartz Geode (Nodule)
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Sandstone (Ferruginous)
Arenite (SiO2 with Iron Oxide impurities)
Sandstone (Graywacke)
Arenite / Graywacke (SiO2 with lithic fragments)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Fossilized Shark Tooth
Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron
Garnet (Almandine)
Almandine Garnet (Fe3Al2(SiO4)3)
Limonite after Marcasite (Propeller Conchoid)
Goethite/Limonite pseudomorph after Marcasite (FeO(OH)·nH2O)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Pet Rock)
Clastic sedimentary rock (primarily SiO2)
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (SiO2 based)
Sandstone (with Lichen)
Arenite (composed primarily of SiO2)
Quartz Geode (partially formed)
Silicon Dioxide (SiO2)
Garnet (specifically Almandine)
Almandine (Fe3Al2(SiO4)3)
Zoisite with Ruby (Anyolite)
Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)
Green Chalcedony (Green Agate)
Silicon Dioxide (SiO2)
Chalcedony (Common Opal variant or Agate)
Silicon Dioxide (SiO2)
Turquoise in Matrix
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Orange Calcite
Calcium Carbonate (CaCO3)
Pink Garnet (likely Almandine or Rhodolite)
Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)
Chalcedony (Agate)
Silicon Dioxide (SiO2)