Sedimentary Or Metamorphic (Base Substrate)

Kyanite (Blue Kyanite)

Kyanite (Al2SiO5)

Garnet (Almandine)

Almandine Garnet (Fe3Al2(SiO4)3)

Limestone

Calcium Carbonate (CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Conglomerate

Clastic sedimentary rock (Polymictic Conglomerate)

Pebble (likely Quartz or Chert)

SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.

Sandstone (Greywacke/Lithic Sandstone)

Arenite / Lithic Sandstone

Red Jasper

Red Jasper (SiO2)

Mica Group Minerals

There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).

Red Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Limestone

Calcium Carbonate (CaCO3)

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Bioclasts

River Cobbles (Basalt, Quartzite, and Sandstone mix)

Fluvial detritus (primarily SiO2, Plagioclase, and Pyroxene mix)

Chalcedony with Druzy Quartz Geode

Silicon Dioxide (SiO2)

Sandstone (Ferruginous)

Sandstone (mainly SiO2 with Fe2O3 staining)

Green Moss Agate

Silicon Dioxide with inclusions (SiO2)

Fossiliferous Limestone

Biogenic Calcium Carbonate (CaCO3)

Chert (and Quartz Gravel)

Chert (Cryptocrystalline Quartz, SiO2)

Coquina / Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate - CaCO3)

Coquina with Shell Fragment

Bioclastic Limestone (composed primarily of CaCO3)

Coquina

Coquina (Bioclastic Limestone)

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Quartz or possibly Jasper/Chert. Looks like a tumbled or water-worn stone.

SiO2 (Silicon Dioxide)

Quartz

Silicon Dioxide (SiO2)

Magnetite / Hematite rich ore

Magnetite (Fe3O4) or Hematite (Fe2O3)

Quartz (Pale Rose or Milky Variety)

Silicon Dioxide (SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Magnetite (Lodestone variety)

Magnetite (Fe3O4)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Milky Variant)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Green Jasper

Silicon Dioxide (SiO2) with impurities

Jasper with Quartz Veining

Silicon Dioxide (SiO2) with impurities

Asphalt / Bituminous Aggregate

Bituminous mixture (Hydrocarbon-based sediment)

Sandstone (Red Sandstone)

Arenite (SiO2 based with Fe2O3 staining)

Sandstone

Arenite (SiO2 based clastic rock)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Sandstone (Muddy/Silty Variety)

Arenite with high silt/clay content (clastic sedimentary rock)

Conglomerate

Clastic Sedimentary Conglomerate (SiO2 based clasts in matrix)

Banded Agate

Sedimentary Cryptocrystalline Quartz (SiO2)