Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Category
Igneous, Sedimentary, And Metamorphic Mix
Browse igneous, sedimentary, and metamorphic mix specimens identified by the Rock Identifier community.
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Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Quartz (Granular)
Silicon Dioxide (SiO2)
mineral
Greenish Metamorphic Rock (likely containing epidote or chlorite)
Metamorphic rock, possibly epidosite or greenstone
Metamorphic
Tiger's Eye (Golden and Blue Pietersite mix)
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Chert (varietal: Flint/Jasper mix)
Hydrous Silica (SiO2)
sedimentary
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
mineral
Magnetite / Hematite (Iron Ore)
Magnetite (Fe3O4) or Hematite (Fe2O3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Jasper (Banded Argillite/Chert mix)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Anthropogenic (Man-made)
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)
Natural freshwater pearls
Pearl (nacreous calcium carbonate; chiefly aragonite, CaCO₃)
gemstone
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Agate
Chalcedony (SiO2)
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz Beads
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz pebble
SiO2
mineral
Tumbled Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Pink/Rose Quartz or Quartz Crystal)
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Iceland Spar (Optical Calcite)
Calcite (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Mixed Mineral Collection
Multi-mineral Assemblage (Quartz, Jasper, Obsidian, Pyrite, etc.)
mineral