Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Category
Browse mineral on sedimentary specimens identified by the Rock Identifier community.
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Sandstone
Arenite (clastic sedimentary rock)
Conglomerate
Sedimentary Conglomerate
Pyrite
Iron Sulfide (FeS2)
Mixed Mineral Assortment (Pyrite, Kyanite, Agate, Jasper)
FeS2 (Pyrite), Al2SiO5 (Kyanite), SiO2 (Agate/Jasper)
Jasper (Chert / Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Pyrite
Iron Sulfide (FeS2)
Graphite
Graphite (Carbon, C)
Feldspar
Triclinic or Monoclinic Tectosilicate (e.g., KAlSi3O8)
Biotite-bearing gneiss
Feldspar–quartz gneiss with dark biotite or amphibole-rich band
Pitted Sedimentary Rock / Cupstone
Sedimentary rock with weathering pit (arenite / sandstone)
Shale
Laminated Fissile Pelite
Sandstone
Arenite
Banded Sedimentary Rock (Wishbone Stone / Banded Quartzite or Limestone)
Silicified limestone or banded sedimentary rock with mineral veins
Sandstone
SiO2 (predominantly quartz sand)
Shale
Shale (clastic sedimentary rock composed of silt and clay-sized particles)
K-Feldspar (Potassium Feldspar)
Orthoclase / Microcline (KAlSi3O8)
Limonite/Goethite Concretion
Goethite (FeO(OH))
Galena
Lead sulfide (PbS)
Quartz Geode
Silicon Dioxide (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Limonite (Ironstone)
Goethite/Limonite (Hydrated iron(III) oxide-hydroxide)
Mica (Muscovite or Biotite)
Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)
Sandstone
Sandstone (principally SiO2/Silicon Dioxide)
Sandstone
Clastic Sedimentary Rock
Sandstone
Sedimentary Clastic Rock
Sandstone (with Siltstone/Greywacke variations)
Sedimentary Rock (Clastic)
Quartz pebble
Silicon dioxide (SiO2)
Sandstone
Clastic Sedimentary Rock
Flagstone
Sedimentary Sandstone / Flagstone
Sandstone
Sedimentary Clastic Rock
Rainbow Fluorite
Fluorite (Calcium Fluoride, CaF2)
Limonite on Sandstone
Iron Oxyhydroxide (FeO(OH)·nH2O) on Quartz Sandstone
Silty Shale
Silty Shale (Fissile Sedimentary Rock)
Sandstone (Water-worn pebble)
Arenite (primarily SiO2)
Mixed Tumbled Gemstones (Agate, Aventurine, Pyrite, etc.)
Multiple (principally Silicon Dioxide SiO2 and Iron Disulfide FeS2)
Sandstone
Arenite (SiO2 principal composition)
Calcite (Honey Calcite and Agate)
Calcium Carbonate (CaCO3)
Quartz-veined Sedimentary Rock
Hydrothermally veined Clastic Sedimentary Rock (SiO2 veins in Matrix)
Honey calcite (orange calcite)
Calcite, calcium carbonate (CaCO₃)
Quartz Geode
Silicon Dioxide (SiO2)