Quartz
Silicon Dioxide (SiO2)
Category
Browse metamorphic, likely sedimentary with quartz veins specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky quartz-bearing rock, possibly quartzite
Quartz (SiO₂), likely in a quartzite or quartz-rich metamorphic matrix
Milky Quartz
Silicon Dioxide (SiO2)
Likely weathered quartz-bearing rock fragment
Indeterminate; appears to contain quartz (SiO₂) with iron-oxide staining, possibly from quartzite, granite, or pegmatite
Quartz Pebble with Host Rock / Schist Matrix
Silicon Dioxide (SiO2) with Metamorphic Host Rock
Quartz Crystal
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Jasper with Quartz Vein
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Banded Gneiss Pebble
Gneiss (Metamorphic Rock)
Dumortierite Quartz
Dumortierite-bearing Quartz (SiO2 with Al7BO3(SiO4)3O3)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Weathered quartz-bearing rock, possibly sandstone or quartzite
Provisional: quartzite (mostly SiO₂); could alternatively be iron-stained quartz sandstone
Quartzite (River Stone)
Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Banded Rock (likely Quartz-rich)
Uncertain, likely a Metamorphic Rock (e.g., Gneiss or Schist) with prominent Quartz and other minerals
Pyrite
Iron Disulfide (FeS2)
Quartz-bearing rock or quartz-rich mineral specimen
Quartz, silicon dioxide (SiO₂); exact host rock is uncertain from the image
Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartzite Pebbles with Quartz Veining
SiO2 (Silicon Dioxide with country rock matrix)
Milky Quartz
Silicon Dioxide (SiO2)
Green aventurine quartzite (likely)
Quartz-rich metamorphic rock; predominantly microcrystalline quartz (SiO₂), with possible fuchsite, chlorite, or epidote
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Gneiss (Metamorphosed Pebble)
Gneiss with Quartz/Feldspar banding
Milky quartz cluster
Quartz (silicon dioxide, SiO₂), likely druzy or microcrystalline quartz
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Tumbled yellow calcite
Calcite (calcium carbonate, CaCO₃)
Quartz Pebble (Iron-stained)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Native Gold
Gold (Au)