Blue Kyanite
Kyanite (Al2SiO5)
Category
Browse metamorphic (man made) specimens identified by the Rock Identifier community.
Blue Kyanite
Kyanite (Al2SiO5)
Milky Quartz
Silicon Dioxide (SiO2)
Black Tourmaline (Schorl)
NaFe3Al6(BO3)3Si6O18(OH)4
Banded Agate (Polished Slice)
Chalcedony (cryptocrystalline Quartz), SiO2
Milky Quartz
Silicon Dioxide (SiO2)
Rhodonite
Rhodonite (MnSiO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite River Rock with Dendrites
Metamorphosed Quartz-rich Sandstone with Manganese Oxide (MnO2) inclusions
Serpentine (Greenstone)
Antigorite, Lizardite, and Chrysolite mixture (Mg3Si2O5(OH)4)
Serpentinite
Serpentinite (containing minerals of the Serpentine subgroup: Antigorite, Lizardite, and Chrysotile; formula (Mg,Fe)3Si2O5(OH)4)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Dendritic Agate
Chalcedony (SiO2) with manganese/iron oxide inclusions
Fluorite with Rhodochrosite
Fluorite (CaF2) and Rhodochrosite (MnCO3)
Silver (Sterling Silver)
Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu
Emerald and Diamond (Jewelry Setting)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities) and Carbon (C)
Quartzite with vugs/druzy quartz
Crystalline Silicon Dioxide (SiO2)
Quartzite Arrowhead (Archaeological Lithic)
Recrystallized Quartz (SiO2)
Granite
Granite (Felsic Plutonic Rock)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite (Iron-stained)
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Iron-Stained Quartzite
Recrystallized Meta-Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Mica Schist
Mica Schist (Complex Silicate Rock)
Glaucophane-bearing Schist (Blueschist)
Blueschist (Glaucophane-Lawsonite Schist)
Zebra Marble
Metamorphosed Alabaster/Limestone (CaCO3)
Pink Quartzite
Quartzite (primarily SiO2)
White Marble (Tumbled)
Recrystallized Calcite (CaCO3)
Quartz (specifically Milky/White Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Petrified Wood (Agatized/Silicified Wood)
Silicified Wood (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Limestone (with potential fossil inclusions)
Calcium Carbonate (CaCO3)
Granite
Phaneritic Plutonic Felsic Rock (SiO2 > 69%)
Limestone (Grey and White specimens)
Calcium Carbonate (CaCO3)
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)