Amethyst geode/druse
Quartz, SiO₂; purple variety amethyst
Category
Browse mineral, variety of quartz specimens identified by the Rock Identifier community.
Amethyst geode/druse
Quartz, SiO₂; purple variety amethyst
Tumbled blue-gray mineral specimen
Indeterminate; possibly dumortierite quartz, sodalite, or dyed stone
Tumbled Quartz
Silicon Dioxide (SiO2)
Quartz (specifically Milky/White Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Mixed Tumbled Rocks and Minerals Collection
Mixed Minerals and Rocks (Quartz, Feldspar, Jasper, Agate, Lapis Lazuli, Sodalite, Rose Quartz, Fluorite, etc.)
Rose Quartz
Silicon Dioxide (SiO2) with trace Ti, Fe, or Mn
Rose Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon dioxide (SiO2) with trace elements of Titanium, Iron, or Manganese
Rose Quartz
SiO2 (Silicon Dioxide) with traces of titanium, manganese, or iron
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Dyed pink agate slice
Agate (microcrystalline quartz, SiO₂), commonly chalcedony with artificial dye
Polished red jasper beads
Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides
Banded Agate
Chalcedony (SiO2 with impurities)
Green Calcite (Onyx Marble)
Calcium Carbonate (CaCO3)
Chevron Amethyst
Silicon Dioxide (SiO2) with Fe3+ impurities
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
Red Jasper
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
Jasper
Quartz (SiO2) with impurities
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxide
Quartz (Milky/Common variety)
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Pink Feldspar
Potassium Feldspar (KAlSi3O8)
Jasper
Microcrystalline Quartz (SiO2)
Quartz (Microcrystalline variety)
Silicon Dioxide (SiO2)
Graphic Granite
Graphic Granite (a variety of Pegmatite)
Quartz
Quartz (Silicon Dioxide - SiO2)
Blue Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Dumortierite or Magnesio-riebeckite
Quartz (Raw Crystal)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Feldspar-rich Granite
Granite (primarily Orthoclase and Quartz)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Pyrite (Fools Gold)
Iron Sulfide (FeS2)
Jasper (specifically Yellow/Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartz
Silicon Dioxide (SiO₂)
Granite Pebble
Granite (Felsic Plutonic Rock)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
White Agate (resembling Bone Chalcedony)
Cryptocrystalline Quartz (SiO2)