Not A Rock Or Mineral (Anthropogenic Material)

Sandstone (likely Fossiliferous)

Arenite / Sedimentum arenaceum

Granite

Phaneritic Igneous Rock (Granite)

Sandstone (Ferruginous)

Arenite with Iron Oxide (Fe2O3) cement

Shale

Fissile Mudstone (primarily composed of clay minerals and quartz)

Diorite

Diorite (Intermediate intrusive igneous rock)

Amethyst Geode

Amethyst (Silicon Dioxide), Formula: SiO2

Sandstone with Calcite Vein

Clastic sedimentary rock (primarily SiO2) with Calcium Carbonate (CaCO3) infilling

Sandstone (Ferruginous)

Arenite (with Hematite/Limonite cement)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Micaceous/Feldspathic variant)

Arenite (specifically subarkose or lithic arenite)

Sandstone

Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)

Sandstone (with Liesegang rings or Oxidation)

Arenite (primarily Quartz SiO2 with Iron Oxide Fe2O3 staining)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (Quartz Sandstone)

Arenite (primarily SiO2)

Granodiorite / Granite

Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)

Granite

Granite (a felsic intrusive igneous rock)

Chert / Flint

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Diorite (River Cobble)

Intermediate plutonic igneous rock

Travertine (Tufa)

Chemical Sedimentary Limestone (CaCO3)

Coquina / Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate - CaCO3)

Sandstone

Arenite

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Red Sandstone

Arenite (Fe2O3 rich)

Olivine/Peridot

Magnesium Iron Silicate (Mg,Fe)2SiO4

Red Jasper

Silicon dioxide (SiO2) with iron oxide (Fe2O3) inclusions

Red Sandstone

Clastic sedimentary rock (primarily SiO2 with Fe2O3)

Sandstone (Ferruginous/Banded)

Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)

Septarian Nodule (Galt)

Calcareous concretion / Septarian concretion

Quartzite

Quartzite (primarily SiO2)

Ferruginous Sandstone

Clastic Sedimentary Rock (Iron-rich)

Ferruginous Sandstone

Ferruginous Clastic Sedimentary Rock

Diorite

Intrusive Igneous Rock (Intermediate Composition)

Quartz (specifically Milky or Clear Chunk)

Silicon Dioxide (SiO2)

Hag Stone

Perforated Sedimentary Rock (typically Limestone or Sandstone)

Asphalt (Bituminous Concrete)

Composite material (bitumen binder with mineral aggregate)

Quartzite

Quartzite (Primary mineral: SiO2)

Septarian Nodule Segment (Turtle Stone)

Septarian Concretion (CaCO3 with Siderite or Calcite infill)

Sandstone (Water-worn Pebble)

Clastic Sedimentary Rock (primarily SiO2)

Sandstone

Arenite (primarily SiO2)

Sandstone (Ferruginous)

Arenite (composed primarily of SiO2 with Fe2O3 staining)

Mica Schist

Mica Schist (Schistose metamorphic rock rich in Muscovite/Biotite)