Clear Quartz
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic Or Sedimentary
Browse metamorphic or sedimentary specimens identified by the Rock Identifier community.
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Milky Quartz (or Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
Mineral
Magnetite-rich ironstone (probable magnetite ore)
Magnetite, Fe₃O₄, likely in a fine-grained ironstone matrix
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
mineral
Decorative polished pebbles
Likely mixed quartz-rich lithologies, including quartzite, jasper, and/or basalt
mineral
Magnetite (Iron Ore)
Iron(II,III) oxide (Fe3O4)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Yellow Aventurine (Tumbled)
Silicon Dioxide (SiO2) with inclusions
mineral
Jasper with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
sedimentary
Tumbled quartz (likely milky or rose quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Quartz (Raw Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (Quartz variety), SiO2
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Raw / Unpolished)
Silicon Dioxide (SiO2)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Anthracite Coal
Anthracite
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Mixed River Pebbles
Clastic Sedimentary Alluvial Deposit / Polymictic Conglomerate Clasts
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon dioxide (SiO2)
Mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
Mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral