Orange Calcite
Calcium Carbonate (CaCO3)
Category
Browse mineral (man enhanced) specimens identified by the Rock Identifier community.
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite (on Quartz matrix)
Iron Sulfide (FeS2)
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3
White Quartz Pebble (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Quartz (Smoky or Impure Variety)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (River Pebble)
Quartz (Silicon Dioxide, SiO2)
Ferruginous Sandstone (Red Sandstone)
Arenite with Hematite/Limonite cement
Red Scoria (Lava Rock)
Scoria (Vesicular Basalt/Andesite)
Petrified Wood
Silicified Wood (SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Arkose)
Arenite (Feldspathic Sandstone / Arkose)
Sandstone
Arenite (primarily SiO2)
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz: SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartz-rich)
Arenite (SiO2 based clastic rock)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (primarily SiO2)
Emerald
Beryl (Be3Al2(SiO3)6) with trace Chromium/Vanadium
Smoky Quartz
Silicon Dioxide (SiO₂)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz River Cobble
Silicon Dioxide (SiO2)
Clear Quartz Point
Silicon Dioxide (SiO2)
Quartz Sand Grain
Silicon Dioxide (SiO2)
Rose Quartz Beads
SiO2 (Silicon Dioxide with trace inclusions of Ti, Fe, or Mn)
Quartz (Smoky/Milky variety with matrix)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble (Iron-Stained)
Quartz (Silicon Dioxide - SiO2)
Quartz (Common Milky Quartz)
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
River Quartz Pitting/Cobble
Silicon Dioxide (SiO2)
Quartz (Smoky/Grey Variety)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide - SiO2)