Limonite (Iron Ore)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
mineral理论上属于沉积成因
Category
Mineral Precipitate (Anthropogenic Context)
Browse mineral precipitate (anthropogenic context) specimens identified by the Rock Identifier community.
Learn about Mineral Precipitate (Anthropogenic Context) in the encyclopedia
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Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Amethyst (Faceted)
Silicon Dioxide with Iron impurities (SiO2)
mineral
Botryoidal Malachite
Malachite - Cu2CO3(OH)2
mineral
Milky Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
Mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Specular Hematite
Hematite (Iron Oxide, Fe2O3)
mineral
Moonstone
Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8
mineral
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Druzzy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Bloodstone
Heliotrope (Chalcedony)
mineral
Quartz (Rose or Milky)
Silicon Dioxide (SiO2)
mineral
Quartz Drusy on Matrix
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Druzy Quartz Geode (Oco or Moroccan variety)
Silicon Dioxide (SiO2)
mineral
Quartz Druzy Geode
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
sedimentary
Crystalline Quartz (Rough)
Quartz (Silicon Dioxide, SiO2)
mineral
Chalcedony in Limestone Host Rock
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Mineral within Sedimentary Rock
Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Jasper (Green)
Silicon dioxide (SiO2)
Mineral/Sedimentary
Quartz with Arsenopyrite
Silicon Dioxide (SiO2) with Iron Arsenic Sulfide (FeAsS)
mineral
Limestone with Calcite Crust
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Chert
Chert (SiO2)
sedimentary
Yellow Chalcedony (Agate/Chert)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Quartz / Quartzite
Silicon Dioxide (SiO2)
Mineral / Metamorphic
Coquina
Bioclastic Limestone (CaCO3)
sedimentary
Fired Clay Brick (Anthropic Rock substitute)
Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)
metamorphic (man-made / anthropic)
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
Quartz Drusy (on Geode Fragment)
Crystalline Silicon Dioxide (SiO2)
mineral
Green Banded Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Celestite (Celestine)
Strontium Sulfate (SrSO4)
mineral
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Jasper
Jasper (Silicate mineral, SiO2)
sedimentary
Limonite (Iron Ore/Sandstone mixture)
Limonite (FeO(OH)·nH2O) often mixed with Goethite and sedimentary matrix
mineral
Quartz Geode in Sedimentary Matrix
Silicon Dioxide (SiO2) within a limestone/dolostone host
mineral
Quartz Geode
Silicon Dioxide (SiO2)
sedimentary
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in Geode form
sedimentary
Ferruginous Quartz
Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)
mineral
Carnelian
Carnelian (SiO2 - Silicon Dioxide with Hematite impurities)
mineral