Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Category
Igneous, Sedimentary, Metamorphic, Mineral
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Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Muscovite Mica
Muscovite / KAl2(AlSi3O10)(OH)2
mineral
Mica
Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
mineral
Gneiss (specifically a granitic gneiss cobble)
Gneiss (high-grade regional metamorphic rock)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Metamorphic
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
Metamorphic
Quartz Veined Mudstone
Metasedimentary rock with Quartz (SiO2) veins
metamorphic
Fossiliferous limestone (likely crinoidal or shell limestone)
Calcite-rich limestone; predominantly CaCO₃, with visible fossil fragments
fossil
Garnet Schist
Almandine Garnet Schist (Fe3Al2(SiO4)3 in Schistose matrix)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss (specifically a Banded Gneiss cobble)
Gneiss (composed mainly of Quartz, Feldspar, and Biotite/Amphibole)
metamorphic
Milky Quartz
Crystalline Quartz (SiO2)
mineral
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Hematite)
mineral
Granite Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Micaceous Rock (likely Muscovite Schist/Gneiss or a Muscovite-rich Specimen)
Predominantly Muscovite (KAl2(AlSi3O10)(F,OH)2), often found in rocks like Muscovite Schist or Muscovite Gneiss.
Metamorphic, Mineral (within a rock type)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss (Cobble)
Gneiss
metamorphic
Quartz with Mica/Host Rock
Silicon Dioxide (SiO2) with Phyllosilicates
mineral
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Magnetite
Magnetite (Fe3O4)
mineral
Quartz (likely Milky Quartz)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Carnelian (Polished Beads)
SiO2 (Silicon Dioxide - Microcrystalline Quartz)
gemstone
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz with Iron Oxide Stain
Silicon Dioxide (SiO2) with Hematite/Limonite coatings
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Milky Quartz (Crystal Cluster)
Silicon Dioxide (SiO2) - Quartz Variety
mineral
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (likely tumbled or naturally water-worn)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral