Aventurine
Aventurine Quartz (SiO2 + Fuschite inclusions)
metamorphic
Category
Mineral, Often Found As A Rock (Metamorphic)
Browse mineral, often found as a rock (metamorphic) specimens identified by the Rock Identifier community.
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Banded Chert
Silicon Dioxide (SiO2)
sedimentary
Chert (variously known as Flint)
Microcrystalline quartz (SiO2)
sedimentary
Gneiss (Pebble)
Gneiss
metamorphic
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite
Metamorphosed Sandstone (SiO2 dominant)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz with Mica / Chlorite Inclusion
Silicon Dioxide (SiO2) with Phyllosilicate minerals
metamorphic
Carnelian
Red Chalcedony (SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Schist
Crystalline Metamorphic Rock (Schistose)
metamorphic
Gold Nugget
Native Gold (Au)
mineral
Specular Hematite
Specularite (Fe2O3)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Gneiss
Metamorphic rock (Gneiss)
metamorphic
Chert Pebble
Microcrystalline silica (SiO2)
sedimentary
Greenschist (or Serpentinite with Manganese Dendrites)
Greenschist facies metamorphic rock
metamorphic
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite with Mica / Gneiss Pebble
Metamorphic Rock (Quartz-Feldspar-Mica aggregate)
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineralological
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Unakite-veined Granite / Epidotized Granite
Epidotized Granite (FeCu2Al2(Si2O7)(SiO4)(OH)2)
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Biotite Schist
Biotite Schist
Metamorphic
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Vein in Basalt or Slate
Hydrothermal quartz vein traversing mafic host rock
metamorphic
Slickenside
Tectonic Fault Scarp Surface
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Red Jasper
Silicon dioxide with iron oxide inclusions (SiO2 + Fe2O3)
sedimentary
Chert
Microcrystalline or cryptocrystalline quartz (SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Glauconite (Greensand)
(K, Na)(Fe3⁰, Al, Mg)₂(Si, Al)₄O₁₀(OH)₂
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Green Gneiss
Metamorphic Gneiss
metamorphic
Clear Quartz
Silicon Dioxide (SiO2)
mineral