Blue Apatite
Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)
Category
Browse metamorphic mineral specimens identified by the Rock Identifier community.
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)
Greenschist
Chlorite Schist
Amphibolite
Amphibolite
Apatite
Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))
Garnet in Schist (Mica Schist with Garnet Inclusion)
Garnetiferous Mica Schist (X3Al2(SiO4)3)
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
Magnetite Ore
Magnetite (Fe3O4)
Rhodonite
Manganese Silicate (Mn, Fe, Mg, Ca)SiO3
Greenschist (or Serpentinite) with Quartz-Feldspar Vein
Metabasalt / Greenschist Facies Rock
Magnetite
Magnetite (Fe3O4)
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Magnetite
Magnetite (Fe3O4)
Dumortierite in Quartz
Dumortierite (Al6O3(BO3)(SiO4)3) with Quartz (SiO2)
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
Quartz
Silicon dioxide (SiO2)
Garnet-bearing quartz (likely almandine garnet in milky quartz)
Quartz (SiO₂) with garnet, likely almandine (Fe₃Al₂(SiO₄)₃)
Staurolite
Staurolite (Fe2+2Al9Si4O23(OH))
Epidote
Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))
Garnet
Garnet group: X3Y2(SiO4)3 (commonly Almandine-Pyrope series)
Rounded, banded metamorphic cobble
Likely gneiss or foliated quartz-rich metamorphic rock; exact identification is uncertain from the photograph.
Aventurine
Silicon dioxide (SiO2) with inclusions
Banded gneiss
Gneiss, commonly quartz–feldspar–mica gneiss
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Garnet-bearing metamorphic rock, likely garnet schist or amphibolite
Almandine garnet (Fe₃Al₂Si₃O₁₂) in mica- or amphibole-rich matrix
Likely blue-green kyanite
Kyanite, Al₂SiO₅
Rhodonite
Manganese silicate (MnSiO3)
Epidote with quartz/feldspar
Epidote, Ca2(Al,Fe)3(SiO4)3(OH)
Blue Aventurine
Silicon Dioxide (SiO2) containing Dumortierite or Crocidolite inclusions
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
Feldspar in Matrix
Feldspar group minerals in metamorphic or igneous matrix
Garnet Schist
Almandine Garnet Schist (Fe3Al2(SiO4)3 in Schistose matrix)
Garnet (Almandine/Pyrope series)
Garnet Group - X3Y2(SiO4)3
Ruby
Corundum (Al2O3 with chromium impurities)
Blue Dumortierite in Quartz
Al7(BO3)(SiO4)3O3 (Dumortierite)
Almandine Garnet
Iron aluminum silicate (Fe3Al2(SiO4)3)
Magnetite
Iron(II,III) oxide (Fe3O4)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Seraphinite (Clinochlore)
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8
Raw Garnet (Hessonite / Spessartine)
Silicate mineral group (X3Y2(SiO4)3)
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Green Aventurine
Quartz with Fuchsine inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)