Cherry Quartz
SiO2 (Silicon Dioxide with iron-rich inclusions/dye)
mineral
Category
Mineral (Synthetic Paper And Ink Polymorph)
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
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Specular Hematite
Hematite (Iron(III) oxide, Fe2O3)
mineral
Yellow Ochre / Limonite
FeO(OH)·nH2O (Hydrated Iron Oxide Mix)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Magnetite (potentially Hematite)
Magnetite (Fe₃O₄)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous matrix
mineral
Specular Hematite
Iron(III) oxide (Fe2O3)
mineral
Limonite (Ironstone)
FeO(OH)·nH2O (Hydrous ferric oxides)
mineral
Strawberry Quartz (Quartz with Hematite inclusions)
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Rose Quartz
Rose Quartz (SiO2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Limonite
Limonite (FeO(OH)·nH2O)
mineral
Quartz (Crystal Fragment)
Silicon Dioxide (SiO2)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Sandstone
Arenite (composed mainly of SiO2)
sedimentary
Petoskey Stone (Petrified Favosites)
Favosites (extinct colonial coral), CaCO3 with Silica replacement
sedimentary
Seraphinite (Clinochlore)
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Limonite (often after Pyrite)
Limonite (FeO(OH)·nH2O)
mineral
Sandstone (with Siltstone/Greywacke variations)
Sedimentary Rock (Clastic)
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Iolite (Cordierite)
Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18
metamorphic
Prehnite
Prehnite, Ca2Al(AlSi3O10)(OH)2
mineral
Howlite
Hydrous calcium borosilicate (Ca2B5SiO9(OH)5)
mineral
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Amber
Succinite (fossilized tree resin), C10H16O
Organic Gemstone
Chrysocolla and Azurite in Matrix
Hydrated copper phyllosilicate (Chrysocolla - Cu2H2Si2O5(OH)4) and Copper carbonate (Azurite - Cu3(CO3)2(OH)2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Granite Pegmatite
Pegmatite (Quartz, Feldspar, Mica)
igneous
Vesicular Basalt
Aphanitic Mafic Volcanic Rock
igneous
Graphic Granite
Pegmatitic Granite
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Iron Staining
Silicon Dioxide (SiO2) with Ferruginous Oxides
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Moss Agate
Silicon Dioxide (SiO2) with mineral inclusions
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral