Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Man Enhanced)
Browse mineral (man enhanced) specimens identified by the Rock Identifier community.
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Amber / Copal
Organic resin, C10H16O
mineral
Milky Quartz
Silicon dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Magnetite (likely with weathered Limonite/Hematite)
Magnetite (Fe3O4) with iron oxide weathering
mineral
Yellow Ochre / Limonite
Limonite (inter-mixed iron oxides and hydroxides, primarily FeO(OH)·nH2O)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Clear Quartz crystals on a Matrix base (Geode fragment)
Silicon Dioxide (SiO2)
mineral
Gold (10K Alloy)
Aurum (Au) with alloying metals (Cu, Ag, Zn)
mineral
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone (Calcareous or Ferruginous)
Clastic sedimentary rock (SiO2 with CaCO3 or Fe2O3 cement)
sedimentary
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
mineral
Greenschist
Chlorite schist
metamorphic
River Cobble (likely Basalt or Metagraywacke)
Non-specific water-worn lithic fragment
igneous or metamorphic
Greenschist
Chlorite schist (Metamorphic rock dominated by chlorite, epidote, and actinolite)
metamorphic
Copper-bearing Quartz (with Malachite and Iron Oxides)
Quartz (SiO2) with Malachite (Cu2CO3(OH)2) and Hematite/Limonite (Fe2O3)
Mineral Specimen
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Bull Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz (Stained with Iron)
Silicon Dioxide (SiO2)
mineral
Kyanite
Kyanite (Al2SiO5)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
River Quartz Cobble
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Celestine (or Celestite) on Matrix
Celestine (SrSO4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (with Iron staining)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz (Carved or Tumbled)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral