Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Category
Igneous And Metamorphic
Browse igneous and metamorphic specimens identified by the Rock Identifier community.
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Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcite (CaCO3)
Mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz with impurities or Host Rock
SiO2 (Silicon Dioxide) with mixed silicates
mineral
Auriferous Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Potassium Feldspar
K-Feldspar (KAlSi3O8)
mineral
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Peacock Ore
Bornite (Cu5FeS4)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Quartz (Milky/Gray variety)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Plagioclase Feldspar
Plagioclase Feldspar Series (NaAlSi3O8 - CaAl2Si2O8)
Mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Garnet (Almandine-Pyrope series)
Garnet Group, Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Mica (Muscovite)
Potassium aluminum silicate - KAl2(AlSi3O10)(OH)2
mineral
Green Opal
Hydrated Silica (SiO2·nH2O)
mineraloid
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Pink Quartz (Rose Quartz variant)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Greenschist
Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)
metamorphic