Mica Schist with Iron Staining
Mica Schist
Category
Browse metamorphic or sedimentary specimens identified by the Rock Identifier community.
Mica Schist with Iron Staining
Mica Schist
Arkosic Sandstone (or Conglomeritic Sandstone fragment)
Arkose (rich in feldspar)
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Coarse Sand Grain / Lithic Fragment
Clastic Sediment (Lithic fragment or Quartz/Feldspar grain)
Petrified Wood
Silicified Wood (primarily SiO2)
Gneiss (Granitic Gneiss)
Gneiss
Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Milky Quartz (Druzy Geode fragment)
Silicon Dioxide (SiO2)
Feldspar-rich Quartzite
Metamorphic Quartz-Feldspar Aggregate (SiO2 + KAlSi3O8)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Pyrite
Iron Sulfide (FeS2)
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Apatite
Fluorapatite (Ca5(PO4)3F)
Multi-gemstone Quartz and Fluorite Bracelet
Silicon Dioxide (SiO2) and Calcium Fluoride (CaF2)
Lava Stone and Chakra Beads
Basalt (with various mineral/synthetic beads)
Quartz / Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Banded River Cobble with Mafic Dike
Hydrothermally altered Graywacke or Sandstone with Mafic Intrusion
Orange Calcite
Calcium Carbonate (CaCO3)
Turquoise and Hematite
CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Fe2O3 (Hematite)
Limonite (Iron Ore)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Gold
Native Gold (Au)
Pyrite
Iron Disulfide (FeS2)
Hematite
Iron(III) oxide (Fe2O3)
Rough Emerald (Beryl)
Emerald (Be3Al2(SiO3)6 with Cr/V impurities)
Pyrite
Iron Sulfide (FeS2)
Schist
Mica Schist
Banded Gneiss
Gneiss (Metamorphic high-grade rock)
Banded Gneiss
Gneiss (Metamorphic high-grade rock)
Banded Gneiss with Quartz Vein
Gneiss containing SiO2 (Quartz) intrusion
Quartz Veined Rock (Likely Graywacke or Quartzite)
Silicon Dioxide (SiO2) veins in Metasedimentary matrix
Gneiss
Gneiss
Gneiss (Granite Gneiss)
Gneiss
Gneiss (Metamorphosed Pebble)
Gneiss with Quartz/Feldspar banding
Granite Gneiss
Gneiss (Polymetamorphic Quartz-Feldspar-Mica rock)
Gneiss
Gneiss
Pyrite
Iron Sulfide (FeS2)
Pyrite (Limonite Pseudo-morph after Pyrite)
Iron sulfide (FeS2) transitioning to Iron oxide-hydroxide (FeO(OH)·nH2O)
Quartz / Quartz Geode Fragment
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)