Pyrite (Fool's Gold) in Matrix
Iron Sulfide (FeS2)
mineral
Category
Metamorphic Or Sedimentary (With Staining)
Browse metamorphic or sedimentary (with staining) specimens identified by the Rock Identifier community.
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Labradorite (a variety of Feldspar)
Labradorite; (Na,Ca)(Al,Si)4O8 (a plagioclase feldspar)
igneous
Mica Schist with Quartz
Mica-Quartz Schist (Muscovite subclass)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
Mineral
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
mineral
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Almandine Garnet in Matrix
Almandine, Fe3Al2(SiO4)3
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Mica Schist with Garnet inclusions
Mica Schist (primarily Muscovite and Biotite - KAl2(AlSi3O10)(OH)2)
metamorphic
Mica Schist
Muscovite Schist (KAl2(AlSi3O10)(OH)2)
metamorphic
Greywacke (Briarcliff Schist/Gneiss)
Manhattan Schist / Fordham Gneiss complex
metamorphic
Quartz (specifically Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Almandine Garnet in Schist
Almandine, Fe3Al2(SiO4)3
metamorphic
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Schist
Chlorite/Mica Schist
metamorphic
Hematite
Iron(III) oxide (Fe2O3)
mineral
Slate
Slate (Metamorphic Rock)
metamorphic
Gneiss
Gneissic Metamorphic Rock
metamorphic
Quartz
Silicon dioxide (SiO2)
Mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite in Matrix (likely Quartz or Schist matrix)
Iron Sulfide (FeS2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
Mineral
Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Rough Quartz (likely Rose or Smoky variant)
Silicon Dioxide (SiO2)
mineral
White Calcite
Calcium Carbonate (CaCO3)
mineral