Amphibolite with Hornblende
Amphibole-rich Metamorphic Rock (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Category
Mineral (Metamorphic Pseudomorph)
Browse mineral (metamorphic pseudomorph) specimens identified by the Rock Identifier community.
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Biotite Schist
Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)
metamorphic
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Amazonite
Microcline (KAlSi3O8) with lead impurities
mineral
Banded Gneiss Pebble
Gneiss (Metamorphic Rock)
metamorphic
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Jade
There are two distinct minerals commonly known as Jade: Nephrite (a calcium magnesium silicate - Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (a sodium aluminum silicate - NaAlSi2O6). Based on the image showing a typically softer, more fibrous appearance, it is likely Nephrite.
Mineral
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH) (Calcium phosphate with Fluorine, Chlorine, or Hydroxyl)
mineral
Tumbled green aventurine
Quartz (SiO₂), commonly containing fuchsite mica inclusions
mineral
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite inclusions)
mineral
Schist
Schist (Metamorphic Rock)
metamorphic
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron inclusions
mineral
Ruby (Raw Corundum)
Al2O3 (Aluminum Oxide)
mineral
Morganite and Aquamarine (Beryl) Bracelet
Beryllium aluminum silicate, Be3Al2(SiO3)6
gemstone
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Clear quartz crystal
Quartz (silicon dioxide, SiO₂)
mineral
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Muscovite Mica
KAl2(AlSi3O10)(OH)2
mineral
Mixed Mineral Collection (with Titanium Aura Quartz)
Silicon Dioxide (SiO2) with metallic coatings and various silicates
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Citrine or Yellow Quartz
Quartz (SiO2) with iron impurities
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
mineral
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with tarnish
mineral
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz (Milky Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Marble
Metamorphosed Limestone (mainly CaCO3)
metamorphic
Rhodonite
Rhodonite ((Mn2+,Fe2+,Mg,Ca)SiO3)
metamorphic
Greenschist
Greenschist (Chlorite-Albite-Epidote Schist)
metamorphic
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
metamorphic
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz (Common Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Tumbled banded metamorphic stone
Likely banded gneiss or migmatitic gneiss; exact identification requires testing
metamorphic
Marble
Recrystallized Carbonate Rock (CaCO3)
metamorphic