Garnet-Mica Schist
Garnetiferous Porphyroblastic Schist
Category
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
Garnet-Mica Schist
Garnetiferous Porphyroblastic Schist
Serpentine
Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)
Quartz
Silicon Dioxide (SiO₂)
Rose Quartz
Rose Quartz (SiO2)
Marble
Marble (primarily Calcite, CaCO3 or Dolomite, CaMg(CO3)2)
Serpentinite
Serpentinite (composed primarily of serpentine-group minerals like antigorite, chrysotile, and lizardite; chemical formula varies but generally Mg3Si2O5(OH)4)
Arsenopyrite with Schist Matrix
Arsenopyrite (FeAsS)
Pyrite
Pyrite (Iron sulfide, FeS₂)
Apatite
Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))
Rock Crystal Quartz
Quartz (SiO₂)
Blue Aventurine
Silicon Dioxide (SiO2) containing Dumortierite or Crocidolite inclusions
Green Aventurine
Quartz with Fuchsine inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Mica (likely Muscovite)
Muscovite / KAl2(AlSi3O10)(OH)2
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Seraphinite (Clinochlore)
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Quartz
Silicon Dioxide (SiO2)
Rutilated Quartz
Quartz (SiO2) with Rutile (TiO2) inclusions
Crystal Quartz Beads (likely Clear Quartz)
Quartz (SiO₂)
Aventurine
Aventurine Quartz (SiO2 with inclusions)
Labradorite
Labradorite (a variety of Plagioclase Feldspar), Na(AlSi3O8) to Ca(Al2Si2O8)
River Pebbles and Quartz
Mixed Igneous, Sedimentary, and Metamorphic Rocks (Silicon Dioxide SiO2 dominant)
Muscovite Mica
Muscovite (Potassium Mica) KAl2(AlSi3O10)(OH)2
Quartz (likely Clear Quartz or Rock Crystal)
Quartz (SiO2)
Pyrite
Pyrite (FeS2)
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite)
Green Aventurine (likely)
Silicon dioxide (SiO2) with fuchsitemica inclusions
Green Aventurine
Quartz (SiO2) with Fuchsite inclusions
Green Aventurine
Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)
Citrine
Quartz (SiO2) - specifically, a variety of macrocrystalline quartz
Mica Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
Rhodonite
Rhodonite (Mn, Fe, Mg, Ca)SiO3
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Kyanite
Kyanite (Al2SiO5)
Fuchsite Gneiss or Schist
Muscovite (variety Fuchsite) within Metamorphic Host Rock
Citrine Quartz
Quartz (SiO2) - specifically, a variety of macrocrystalline quartz
Rutilated Quartz
Quartz (SiO2) with Rutile (TiO2) inclusions
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Moonstone
Adularia (orthoclase feldspar variety)