Arsenopyrite with Schist Matrix
Arsenopyrite (FeAsS)
Category
Browse igneous or metamorphic specimens identified by the Rock Identifier community.
Arsenopyrite with Schist Matrix
Arsenopyrite (FeAsS)
Marble
Marble (primarily Calcite, CaCO3 or Dolomite, CaMg(CO3)2)
Rhodonite
Rhodonite (Mn, Fe, Mg, Ca)SiO3
Kyanite
Kyanite (Al2SiO5)
Banded Gneiss
Gneiss (pronounced 'nice')
Crystal Quartz Beads (likely Clear Quartz)
Quartz (SiO₂)
Labradorite
Labradorite (a variety of Plagioclase Feldspar), Na(AlSi3O8) to Ca(Al2Si2O8)
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Blue Aventurine
Silicon Dioxide (SiO2) containing Dumortierite or Crocidolite inclusions
Green Aventurine
Quartz with Fuchsine inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Serpentine
Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)
Apatite
Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))
Mica Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
Mica (likely Muscovite)
Muscovite / KAl2(AlSi3O10)(OH)2
Quartz (River Pebble)
Quartz (SiO₂ - Silicon Dioxide)
River Pebbles and Quartz
Mixed Igneous, Sedimentary, and Metamorphic Rocks (Silicon Dioxide SiO2 dominant)
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Green Calcite
Calcite (CaCO3)
Rhodonite
Rhodonite (Manganese Silicate), chemical formula: (Mn,Fe,Mg,Ca)SiO3
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Muscovite Mica
Muscovite (Potassium Mica) KAl2(AlSi3O10)(OH)2
Rose Quartz
Rose Quartz (SiO2)
Yellow Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Quartz
Quartz (SiO₂)
Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Silicon dioxide (SiO2) with inclusions of Fuchsite
Rhodonite
Rhodonite (Manganese silicate, (Mn,Fe,Mg,Ca)SiO3)
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3
Dumortierite Quartz
Al7BO3(SiO4)3O3 (Aluminum borate silicate)
Fuchsite (Chrome Mica)
K(Al,Cr)2(AlSi3O10)(OH)2
Ruby in Zoisite
Ruby (α-Al2O3) embedded in Zoisite (Ca2Al3(SiO4)3(OH)) with some Hornblende
Arsenopyrite in Quartz Matrix
Arsenopyrite (FeAsS) with Quartz (SiO2)
Jade
There are two distinct minerals classified as Jade: Jadeite (Na(Al,Fe3+)Si2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the image showing translucent, somewhat fibrous material, it is likely Nephrite.
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)], with varying amounts of Calcite, Pyrite, and Sodalite.)
Quartz
Quartz (Silicon Dioxide - SiO2)
Almandine Garnet in Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist