Agate (specifically Oco or Banded Agate)
Agate (a variety of Chalcedony), SiO2 (Silicon Dioxide)
Category
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Agate (specifically Oco or Banded Agate)
Agate (a variety of Chalcedony), SiO2 (Silicon Dioxide)
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, manganese, or iron
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Honey Calcite
Calcite (Calcium Carbonate, CaCO3)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Tumbled)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Banded Rock (likely Quartz-rich)
Uncertain, likely a Metamorphic Rock (e.g., Gneiss or Schist) with prominent Quartz and other minerals
Green Aventurine
Silicon Dioxide (Quartz) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chalcedony (Quartz Pebbles)
Silicon Dioxide (SiO2)
Red Jasper
Microcrystalline Quartz (Chalcedony), SiO2 with iron oxide inclusions
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
Quartz (pebble)
Quartz (SiO₂)
Milky Quartz
Silicon Dioxide (SiO2)
Brown Quartz (Jasper or Chert)
Silicon Dioxide (SiO2)
Rose Quartz
Rose Quartz (SiO2)
Jasper (specifically Bloodstone or Heliotrope variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
Conglomerate
Polymictic Conglomerate
Mixed Rock Collection
Polylithic Geological Specimen Mix
Amethyst
Amethyst (SiO2 - Silicon Dioxide with iron impurities)