Weathered sandstone or metasedimentary rock
Quartz-rich sandstone; possibly weakly metamorphosed quartzite
sedimentary
Category
Sedimentary And Metamorphic Minerals
Browse sedimentary and metamorphic minerals specimens identified by the Rock Identifier community.
Learn about Sedimentary And Metamorphic Minerals in the encyclopedia
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White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Boulder
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite / Iron Ore (likely Hematite-Magnetite mix)
Magnetite (Fe3O4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss (or Granite Gneiss)
Metamorphic rock rich in quartz, feldspar, and biotite/amphibole
metamorphic
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Tumbled quartz pebble
Quartz (silicon dioxide, SiO₂), probably milky or iron-stained quartz
mineral
Collection of Minerals and Ores
Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)
mineral
Amphibolite / Biotite Schist
Amphibolite (rich in Hornblende and Plagioclase feldspar)
metamorphic
Mica Schist
Mica Schist (predominantly Muscovite/Biotite Schist)
metamorphic
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
mineral
Gneiss
Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)
metamorphic
Quartz (Quartzite / Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Green Slate Pebble (Serpentine / Greenschist Pebble)
Greenschist / Low-grade Metamorphic Rock
metamorphic
Banded Gneiss
Gneiss (Metamorphic silicate rock)
metamorphic
Gneiss
Gneiss
metamorphic
Chakra Stone Bracelet
Mixed Mineral Assembly (Scoria, Amethyst, Lapis Lazuli, Turquoise/Howlite, Impression Jasper, Tiger's Eye, Carnelian, Red Jasper)
igneous, metamorphic, and sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Garnet Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Banded gray stone, likely slate or fine-grained metamorphic rock
Probably slate or phyllite; composition commonly mica, quartz, and clay-derived minerals
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Gray/Smoky Varieties)
Silicon Dioxide (SiO2)
mineral
Greenstone / Diabase Porphyry
Porphyritic Diabase (Micro-gabbro)
Igneous
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Kyanite-rich schist (probable)
Kyanite-bearing quartz–mica schist; kyanite, Al₂SiO₅
metamorphic
Garnet-Bearing Gneiss
Almandine-Garnet Gneiss
metamorphic
Banded sandstone pebble
Quartz-rich lithic sandstone; exact provenance and composition require testing
sedimentary
Weathered foliated metamorphic rock, likely schist or gneiss
Mica schist to gneiss; commonly quartz + feldspar + biotite/muscovite
metamorphic
Gneiss
Gneiss (Foliated Metamorphic Rock)
metamorphic
Quartz pebble
Silicon dioxide (SiO2)
mineral
Quartz-rich rock or quartz specimen
Quartz (SiO₂), likely massive quartz or quartz-bearing host rock
mineral
Magnetite Nodule
Magnetite (Fe3O4)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic