Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Category
Browse sedimentary or metamorphic derived specimens identified by the Rock Identifier community.
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Schist
Mica Schist
Marble
Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.
Rhodonite Tumbled Chips
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Hypersthene
Hypersthene (Enstatite variety), (Mg,Fe)SiO3
Fancy Jasper
Silicon Dioxide (SiO2)
Muscovite Mica
Muscovite (Potassium Mica) KAl2(AlSi3O10)(OH)2
Red Jasper (Siltstone variant)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Feldspar
Potassium Feldspar (KAlSi3O8)
Fluorite
Fluorite (CaF₂)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
Jasper (SiO2) with Hematite (Fe2O3) inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Jasper (Silicon Dioxide, SiO2)
Muscovite Schist
Mica Schist (KAl2(AlSi3O10)(OH)2)
Serpentine
Serpentine-group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)
Schist
Mica Schist
Zoisite with Ruby / Anyolite
Anyolite (Ca2Al3(SiO4)3(OH) with Chromian Zoisite and Tschermakite inclusions)
Mica Schist
Mica Schist
Marble
Metamorphic Limestone (CaCO3)
Aquamarine (Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
Serpentine
Serpentine group, including Antigorite, Lizardite, and Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Greenschist
Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)
Ruby in Zoisite (Anyolite)
Anyolite (Combination of Corundum and Zoisite)
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
Feldspar (Orthoclase/Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
Jasper with Iron Staining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Yellow Chalcedony (likely carnelian or yellow agate)
Silicon Dioxide (SiO₂)
Jasper
Silicon dioxide (SiO2) with impurities
Red Jasper (Polished)
Jasper (Iron-rich Microcrystalline Quartz, SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Serpentine
Antigorite/Lizardite (Mg, Fe)3Si2O5(OH)4
Schist
Mica Schist
Mica Schist
Schist (Biotite/Muscovite rich)
Mica Schist
Mica Schist (primarily Muscovite and Quartz)
Zoisite with Ruby (Anyolite)
Anyolite (Ca2Al3(SiO4)3(OH) + (Hb, Al, Cr)2O3)
Serpentine
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
Red Jasper
Silicon Dioxide (SiO2) with iron oxide (Fe2O3) inclusions
Red Jasper (nodule)
Silicon Dioxide (SiO2) with Iron Oxide inclusions