Yellow Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Yellow Quartz
Silicon Dioxide (SiO2)
Marble
Recrystallized Calcite (CaCO3)
Blue slag glass or dyed glass-like industrial material
Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass
Banded calcite/aragonite mineral specimen (tentative)
Calcite (CaCO₃), possibly with aragonite or crystalline carbonate growth
Calcite (Optical Calcite / Iceland Spar)
Calcium Carbonate (CaCO3)
Honey Calcite
Calcium Carbonate (CaCO3)
General Rock and Mineral Collection (Center: Angelite / Blue Anhydrite)
Anhydrite (Calcium Sulfate, CaSO4)
Banded Calcite
Calcite (Calcium Carbonate, CaCO3)
Tumbled orange calcite
Calcite (calcium carbonate, CaCO₃)
Milky calcite specimen
Calcite (calcium carbonate, CaCO₃)
Magnetite
Magnetite (Fe3O4)
Calcite
Calcium Carbonate (CaCO3)
Blue Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2)
Dyed Agate Slice
Silicon Dioxide (SiO2)
Sapphire
Corundum (Al2O3)
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
Citrine
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (Quartz variety), SiO2
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Banded Agate (Pink/White)
Silicon Dioxide (SiO2) - Variety of Chalcedony
Smoky Quartz
Smoky Quartz (SiO2: Silicon Dioxide)
Chalk
Calcium Carbonate (CaCO3)
Diamond (or Diamond Simulant)
Carbon (C)
Dyed Dalmatian Jasper (Dalmatian Stone)
Perthitic Feldspar with Arfvedsonite inclusions
Tumbled blue calcite
Calcite (CaCO₃), likely blue variety
Blue calcite (probable)
Calcite, calcium carbonate (CaCO₃)
Eye Agate
Silicon Dioxide (SiO2) - Banded Chalcedony
Tanzanite
Blue-violet Zoisite (Ca2Al3(SiO4)3(OH))
Honey Calcite
Calcium Carbonate (CaCO3)
Citrine
Silicon Dioxide (Quartz variety), SiO2
Dyed Quartzite (Pink/Magenta)
Silicon Dioxide (SiO2) - Artificially Colored Quartzite
Polished calcite (likely honey/yellow calcite)
Calcite, calcium carbonate (CaCO₃)
Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Blue calcite
Calcite (CaCO₃), likely blue calcite with minor matrix minerals
Calcite specimen
Calcite (calcium carbonate, CaCO₃), likely crystalline limestone or cave-calcite aggregate
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Calcite (Optical Grade/Iceland Spar)
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Calcite Geode
Calcium Carbonate (CaCO3)
Rose Quartz (Aura Quartz)
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese