Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Green Jasper
Silicon Dioxide (SiO2) with impurities
Quartz (likely a form of massive or vein quartz)
Quartz (SiO₂)
Garnet-Mica Schist
Garnetiferous Porphyroblastic Schist
Mica Schist
Mica Schist (primarily composed of Muscovite/Biotite)
Pink Rhodonite
Manganese Silicate (MnSiO3)
Mica Schist (with Muscovite)
Muscovite/Quartz Schist (KAl2(AlSi3O10)(OH)2)
Graphite
Graphite (Carbon, C)
Graphite
Graphite (Native Carbon), Formula: C
Pyrite
Iron Disulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite
Iron Pyrite (FeS2)
Blue Calcite
Calcium Carbonate (CaCO3)
Botryoidal Pyrite
Iron Sulfide (FeS2)
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
River Quartzite Siltstone
Quartz-rich Meta-siltstone (SiO2 dominated)
Quartz Fragment
Silicon Dioxide (SiO2)
Hematite
Hematite (Α-Fe2O3)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Mixed Mineral and Fossil Collection
Multi-specimen assemblage (SiO2, CaCO3, FeS2, etc.)
Quartz (Milky/Crystalline variety)
Silicon Dioxide (SiO2)
Quartz Mineral
Silicon Dioxide (SiO2)
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
Onyx Marble (Banded Calcite)
Calcite (Calcium Carbonate, CaCO3)
Quartz
Silicon Dioxide (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Quartz
Silicon dioxide (SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with fuchsite inclusions)
Foliated Metamorphic Rock (likely Gneiss or Schist)
Gneissic Metamorphic Rock
Marble
Marble (metamorphosed limestone or dolostone), primarily composed of calcite (CaCO3) or dolomite (CaMg(CO3)2)
Blue Kyanite
Kyanite (Al2SiO5)
Blue Kyanite
Kyanite (Al2SiO5)
Magnetite (Lodestone)
Magnetite (Fe3O4)
Almandine Garnet in Matrix
Almandine Garnet (Fe3Al2(SiO4)3) in Schist/Quartz Matrix
Specular Hematite (Specularite)
Iron(III) oxide (Fe2O3)
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
Kyanite
Kyanite (Al2SiO5)
Magnetite
Magnetite (Iron(II,III) oxide, Fe3O4)
Almandine Garnet in Matrix
Almandine, Fe3Al2(SiO4)3
Quartz
Quartz (SiO2 - Silicon Dioxide)
Quartz (Clear or Cloudy)
Silicon Dioxide (SiO2)