Banded Agate
Agate (Silicon Dioxide, SiO2)
sedimentary
Category
Metamorphic Mineral
Browse metamorphic mineral specimens identified by the Rock Identifier community.
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Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Galena
Lead(II) sulfide (PbS)
mineral
Prehnite
Calcium aluminum silicate hydroxide - Ca2Al(AlSi3O10)(OH)2
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Hypersthene
Hypersthene (formula: (Mg,Fe)SiO3)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite in Matrix (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Gold Ore (in Quartz/Pyrite)
Native Gold (Au) with Quartz (SiO2) and Pyrite (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Specular Hematite (Specularite) in Matrix
Specularite (Fe2O3)
mineral
Quartz with Schorl inclusions
Silicon Dioxide (SiO2) with Sodium Iron Aluminum Borosilicate Hydroxide (Black Tourmaline)
mineral
Banded Quartzite with Epidote and Iron Oxides
Metasedimentary Quartzite (SiO2) with inclusions
metamorphic
Quartz Vein in Host Rock (often Granite or Schist)
Silicon Dioxide (SiO2) within host matrix
mineral with metamorphic or igneous host
Gneiss
Gneiss
metamorphic
Epidote with Magnetite/Hematite inclusions
Epidote (Ca2(Al2,Fe3+)(SiO4)3(OH)) with Iron Oxides
mineral
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Mica Schist
Mica Schist (Composition: Muscovite, Biotite, Quartz, Feldspar)
metamorphic
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Blue Quartz
Quartz (Silicon Dioxide) with inclusions, SiO2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Red Garnet
Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)
mineral
Schist
Mica Schist
metamorphic
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
mineral
Pyritic Gneiss
Metamorphic Gneiss with Pyrite inclusions
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Orange Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
mineral