Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Category
Browse sedimentary (jasper), mineral (aquamarine) specimens identified by the Rock Identifier community.
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Sandstone (Quartzose Sandstone)
Arenite
Sandstone (likely Quartzose)
Sandstone (Principally SiO2)
Sandstone
Arenite (primarily SiO2)
Moqui Marble (Concretion)
Iron Oxide Concretion (Hematite/Goethite)
Limonite
FeO(OH)·nH2O (Hydrated iron oxide)
Celestine (or Celestite) on Matrix
Celestine (SrSO4)
Chalcedony
Chalcedony (SiO2)
Biotite Gneiss
Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)
Sandstone (with Lichen)
Arenite (composed primarily of SiO2)
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Sandstone (Pebble)
Arenite (primarily SiO2)
Quartz Geode (partially formed)
Silicon Dioxide (SiO2)
Sandstone (Green/Yellow Siltstone variant)
Arenite or Siltstone (primarily SiO2 with mineral staining)
Sandstone
Arenite (composed primarily of SiO2)
Clear Quartz
Silicon dioxide (SiO2)
Sandstone
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Mica-rich Schist fragment
Mica Schist
Fossilized Shark Tooth
Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron
Garnet (Almandine)
Almandine Garnet (Fe3Al2(SiO4)3)
Banded Chert
Microcrystalline Quartz (SiO2)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 cement)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Pet Rock)
Clastic sedimentary rock (primarily SiO2)
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Geode (Unbroken)
Silicon Dioxide (SiO2) usually as Microcrystalline Quartz or Chalcedony
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2 (Silicon Dioxide)
Sandstone (Quartzose Sandstone)
Arenite (SiO2 principal component)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Sandstone
Arenite (primarily SiO2)
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
Gneiss (Banded Gneiss)
Gneiss
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone (with potential Quartzite characteristics)
Clastic sedimentary rock (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Garnet (specifically Almandine)
Almandine (Fe3Al2(SiO4)3)
Zoisite with Ruby (Anyolite)
Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)
Chalcedony in Limestone Host Rock
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (Fe-bearing Clastic Sedimentary Rock)
Quartz Geode (Nodule)
Silicon Dioxide (SiO2)