Mineral And Sedimentary

Fossilized Shark Tooth (Otodus)

Otodus sp. (calcium phosphate/hydroxylellite)

Calamites

Calamites (Pith cast fossil)

Gneiss (specifically a weathered Amphibolite or Garnet Gneiss)

Gneiss (complex silicate composition)

Fluorite (Green Fluorite)

Fluorite (Calcium Fluoride, CaF2)

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Green Fluorite

Calcium Fluoride (CaF2)

Sandstone (Ferruginous)

Arenite (Fe2O3 enriched)

Glauconitic Sandstone

Glauconitic Quartz Arenite

Sandstone (with Arkose characteristics)

Clastic sedimentary rock (SiO2 with KAlSi3O8)

Sandstone

Arenite (primarily SiO2)

Sandstone

Arenite (SiO2 based)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Bauxite

AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)

Sandstone with Iron Oxide Staining

Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)

Sandstone (likely Quartzose Sandstone)

Arenite (primarily SiO2)

Sandstone (Quartz-rich)

Arenite

Calcite on Limestone

Calcium Carbonate (CaCO3) on Sedimentary Rock

Sandstone Pebble

Arenite (SiO2 principal)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (Yellow/Tan Sandstone)

Arenite (primarily Quartz, SiO2)

Sandstone

Arenite (primarily composed of SiO2)

Sandstone

Arenite (composed primarily of SiO2)

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Fossilized Shark Tooth (Otodus obliquus)

Otodus obliquus (Mineral: Fluorapatite)

Sandstone (Painted)

Arenite (primarily SiO2)

Sandstone (likely Arkose or Quartz Sandstone)

Arenite (SiO2 + varied clasts)

Calcite on Host Rock

Calcium Carbonate (CaCO3)

Rhodochrosite

Manganese carbonate (MnCO3)

Sandstone (Red Sandstone)

Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide)

Liesegang Stone (Sandstone with Liesegang Rings)

Clastic sedimentary rock with li-secondary iron oxide mineralization

Hematite

Hematite, Iron(III) oxide (Fe2O3)

Sandstone (Ferruginous)

Arenite (with Iron Oxides)

Amber

Succinate (Fossilized Resin)

Quartz Geode in Sedimentary Matrix

Silicon Dioxide (SiO2) within a limestone/dolostone host

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Emerald

Beryl (Be3Al2(SiO3)6) colored by Chromium and/or Vanadium

Sandstone

Arenite (Clastic Sedimentary Rock)

Sandstone (Pebble)

Arenite / Clastic Sedimentary Rock

River Cobble (Sandstone)

Arenite (primarily SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Ferruginous Sandstone (Red Sandstone)

Arenite with Hematite/Limonite cement