Limonite (Iron Ore)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Category
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Limonite (Iron Ore)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Rose Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite Na8(Al6Si6O24)Cl2
Olivine
Olivine group (Mg, Fe)2SiO4
Atlantic Calico Scallop (Biogenic Aragonite/Calcite)
Argopecten gibbus (Chemical: CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Hematite (Oolitic or Earthy variety)
Iron(III) oxide (Fe2O3)
Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium
Agate
Silicon Dioxide (SiO2)
Pink Opal
Amorphous Hydrous Silica (SiO2·nH2O)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Emerald in Host Rock
Beryl (Be3Al2Si6O18) containing Chromium and/or Vanadium
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide impurities), formula: SiO2
Native Copper
Native Copper (Cu)
Milky Quartz
Silicon Dioxide (SiO2)
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
Yellow Quartz Pebble
SiO2 (Silicon Dioxide)
Hematite
Iron(III) oxide (Fe2O3)
Sandstone with Tafoni Weathering
Arenite (SiO2 based)
Serpentinite
Serpentinite (group of hydrous magnesium iron phyllosilicates)
Quartzite River Rock
Quartzite (primarily SiO2)
Manganese Oxide Crust on Limestone
Manganese Oxides (e.g., Pyrolusite MnO2 or Romanechite) on CaCO3
Kimberlite with Diamond
Kimberlite (Porphyritic Peridotite)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Druzy Agate (Star-cut Geode Slice)
Silicon Dioxide (SiO2) - Microcrystalline and Macrocrystalline Quartz
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Chalcedony (River Stone)
Silicon Dioxide (SiO2)
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
Chromium (Chrome)
Chromium (Cr)
Chalcedony (specifically Agate or Moonstone-like Quartz)
Silicon Dioxide (SiO2)
Dumortierite Quartz (Blue Quartz)
Al7BO3(SiO4)3O3 (Aluminum Boro-silicate included in Quartz)
Rose Quartz (or Quartzite)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chalcedony (River Stone)
Microcrystalline Quartz (SiO2)
Sandstone (Quartzite Pebble)
Arenite (primarily SiO2)
Sandstone (specifically Red Sandstone)
Arenite (primarily Quartz, SiO2)
Sandstone
Clastic Sedimentary Rock (composed mostly of SiO2)
Shale
Shale (comprised mostly of clay minerals and quartz)
Sandstone (Ferruginous)
Arenite (with iron oxide cement, Fe2O3)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)