Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Category
Sedimentary Or Metamorphic (Base Substrate)
Browse sedimentary or metamorphic (base substrate) specimens identified by the Rock Identifier community.
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Slate
Slate (Foliated Metamorphic Rock)
metamorphic
Mica Schist
Foliated Metamorphic Rock (Schist)
metamorphic
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Iron Oxide cement)
sedimentary
Bloodstone
Chalcedony (Variety: Bloodstone / Heliotrope), SiO2
mineral
Sandstone (Quartzose Sandstone)
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Emerald in Matrix
Beryl (Be3Al2Si6O18)
mineral
Mica Schist with Quartz
Muscovite/Biotite Schist
metamorphic
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Citrine Quartz
Silicon Dioxide (SiO2) with ferric iron impurities
mineral
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Sandstone Pebble
Arenite (SiO2 based)
sedimentary
Green Tourmaline (Verdelite)
Complex sodium iron aluminum borosilicate (Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH)4)
gemstone
Greenstone
Metabasalt
metamorphic
Quartzite (River Pebble)
Quartzite (SiO2)
metamorphic
Limestone pebble
Sedimentary rock, primarily calcium carbonate (CaCO3)
sedimentary
Schist with Biotite and Quartz
Biotite-Quartz Schist (Fe,Mg,Al silicate mix)
metamorphic
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Sandstone (Pebble)
Arenite (SiO2 based)
sedimentary
Druzy Quartz on Limestone
Silicon Dioxide (SiO2)
mineral
Wishing Stone (Basalt/Greywacke with Quartz Vein)
Basalt or Siltstone with SiO2 (Quartz) hydrothermal intrusion
igneous/sedimentary
Labradorite (Polished Sphere)
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Fuchsite or Green Mica Schist
K(Al,Cr)2(AlSi3O10)(OH)2
metamorphic
Quartz Geode
Silicon Dioxide (SiO2) within a geode
mineral
Sandstone (Quartz Sandstone)
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Quartzite River Rock
Metamorphic Rock (Recrystallized Quartz - SiO2)
metamorphic
Puddingstone (specifically Gowganda Tillite or St. Joseph Island Puddingstone)
Jasper Conglomerate
sedimentary
Fossil Shark Tooth
Carcharodon sp. (likely Otodus or similar Lamniformes order)
sedimentary
Mica (Lepidolite or Muscovite)
Phyllosilicate mineral (KAl2(AlSi3O10)(OH)2 for Muscovite)
mineral
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Muscovite Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 matrix)
metamorphic
Quartz with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
mineral
River Pebbles (Sandstone and Quartzite)
SiO2 (Quartz) dominated clastic rocks
sedimentary and metamorphic
Emerald in Matrix
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
gemstone
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2 mixed with SiO2)
metamorphic
Biotite (Black Mica) in Host Rock
K(Mg,Fe)3AlSi3O10(OH,F)2
mineral