Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Mineral
Category
Mineral, Often Found In Metamorphic Rocks But Also In Sedimentary And Igneous Rocks
Browse mineral, often found in metamorphic rocks but also in sedimentary and igneous rocks specimens identified by the Rock Identifier community.
Quartz (Grain/Fragment)
Silicon Dioxide (SiO2)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
Mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Garnet (likely Almandine or a blend)
Garnet group: X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+. Given the dark, somewhat reddish-brown appearance in the image, it's likely Almandine (Fe3Al2(SiO4)3) or a mix with other iron-rich garnets.
Mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite in Matrix (likely Quartz or Schist matrix)
Iron Sulfide (FeS2)
mineral
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
mineral
Sodalite
Sodalite: Na8(Al6Si6O24)Cl2
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Spessartine Garnet
Manganese aluminum silicate (Mn2+3Al2(SiO4)3)
mineral
Sodalite
Sodalite (Sodium Aluminum Silicate Chloride) - Na8(Al6Si6O24)Cl2
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Apatite
Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Labradorite (tumbled)
Labradorite (a plagioclase feldspar mineral between anorthite and albite; chemical formula: (Ca,Na)(Si,Al)4O8)
Mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Quartz
SiO₂ (Silicon Dioxide)
Mineral
White Zircon
Zircon (Zirconium silicate, ZrSiO4)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Epidote
Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Black Star Diopside (beads)
Diopside (CaMgSi2O6) - a member of the pyroxene group
Mineral
Chalcopyrite
Chalcopyrite (CuFeS2)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Calcite
Calcite (CaCO3)
Mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Sodalite (blue beads) and Clear Quartz (clear beads)
Sodalite: Na4Al3Si3O12Cl; Quartz: SiO2
mineral