Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Silicate Variety)
Browse mineral (silicate variety) specimens identified by the Rock Identifier community.
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Granite
Granite (Felsic Plutonic Rock)
igneous
Ruby
Corundum (mineral species), variety: Ruby (Al2O3 with Cr3+ as the chromophore)
Mineral
Tumbled Stones (various)
Mixed Silica-based Minerals (primarily Quartz and Chalcedony)
mineral
Banded Agate
Sio2 (Silicon Dioxide / Chalcedony variety)
mineral
Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Jasper (Willow Creek/Desert style)
Silicon Dioxide (SiO2) with iron and clay impurities
sedimentary
White Quartz (Milky Quartz)
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Banded Agate
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Tiger's Eye (dark/grey variant)
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Leopard Skin Jasper
Chalcedony (cryptocrystalline Quartz)
Mineral
Pearl (with Peridot)
Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - Mn%,Fe%,Mg,Ca)SiO₃
mineral
Mystic Topaz
Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3
mineral
Turquoise, Pearl, and Coral Necklace
CuAl6(PO4)4(OH)8·4H2O (Turquoise) / CaCO3 (Pearl and Coral)
mineral
Red Jasper
Red Jasper (SiO2 with Hematite inclusions)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Smoky Quartz
Smoky Quartz (SiO2)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Amygdaloidal Basalt
Basalt with secondary mineral infillings (SiO2, (Ca,Na)2-3(Mg,Fe,Al)5Si8O22(OH)2)
igneous
Banded Agate (specifically Sardonyx or Carnelian Agate)
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Malachite with Chrysocolla
Copper carbonate hydroxide (Cu2CO3(OH)2) and Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and other impurities
sedimentary
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Fancy Jasper
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
mineral
Chert (or possibly Flint)
SiO2 (Silicon Dioxide)
Sedimentary Rock
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, manganese, or iron
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite in Matrix (likely Quartz or Coal)
Iron Sulfide (FeS2)
mineral
Bull Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Carnelian (Chalcedony variety)
SiO2 (Silicon Dioxide)
Mineral
Sandstone (likely Quartzite-grade)
Arenite (primarily SiO2)
sedimentary