Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary Or Metamorphic
Browse sedimentary or metamorphic specimens identified by the Rock Identifier community.
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Magnetite / Hematite mix (Iron Ore)
Fe3O4 (Magnetite) / Fe2O3 (Hematite)
mineral
Unidentifiable Specimen
Undetermined
Unknown
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz / Rock Crystal
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Hematite
Hematite (Iron(III) oxide, Fe2O3)
mineral
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Gneiss (Cobble)
Gneiss
metamorphic
Banded Gneiss
Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica)
metamorphic
Quartz / Quartzite
Silicon Dioxide (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Red Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
Metamorphic
River Stone (Quartzite/Chert)
Metamorphosed Quartz-rich Sedimentary Rock
metamorphic
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss with Orthoclase Feldspar
Gneissic Metamorphic Rock with K-Feldspar inclusions
metamorphic
River Cobble (Salt and Pepper Gneiss)
Gneiss (High-grade regional metamorphic rock)
metamorphic
Quartz on Schist
Silicon Dioxide (SiO2) on Foliated Metamorphic Rock
metamorphic
Gneiss (specifically Granite Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Quartz
Quartz (Silicon Dioxide - SiO2)
Mineral
Pink Quartzite
Quartzite (SiO2 with iron oxide inclusions)
metamorphic
Pyrite
Iron Disulfide (FeS2)
mineral
Petrified Wood (Silicified Wood)
Silicified fossil wood (SiO2)
metamorphic
Quartzite with inclusions
Quartzite (primarily SiO2)
metamorphic