Sedimentary Rock (Possibly Conglomerate Or Breccia With A Quartz Vein)

Gold Mineral

Native Gold (Au)

Sandstone

Arenite (primarily Quartz Sandstone with Iron Oxide)

Shale with Iron Oxide Staining

Fissile Mudstone (primarily clay minerals and quartz)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Fossilized Favosites (Honeycomb Coral)

Favosites (Genus), Phylum Cnidaria, Class Anthozoa

Sandstone with Magnetite and Iron Staining

Clastic Sedimentary Rock (contains Fe3O4 and Limonite/Hematite)

Quartz (Gray/Smoky Varieties)

Silicon Dioxide (SiO2)

Sandstone (Wonderstone)

Silicified Sandstone / Orthoquartzite with Liesegang rings

Sandstone (Ferruginous)

Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Chert (specifically Agate/Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Petrified Wood

Silicified Wood (primarily SiO2 - Silicon Dioxide)

Jasper (Red)

Silicon Dioxide (SiO2)

Ferruginous Sandstone (Ironstone)

Ferruginous Sandstone / Limonite-cemented Quartz Sandstone

Jasper

Silicon dioxide (SiO2)

Chalcedony (Quartz Nodule)

Silicon Dioxide (SiO2)

Chert / Flint

Cryptocrystalline Quartz (Silicon Dioxide, SiO2)

Chert (concretionary/nodular variant)

Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions

River Quartz Pitting/Cobble

Silicon Dioxide (SiO2)

River Pebble (Gneiss or Quartzite variant)

Course-grained Metamorphic Rock (likely SiO2 dominant)

Yellow Calcite

Calcium Carbonate (CaCO3)

Sandstone (specifically Arkose or Ferruginous Sandstone)

Sandstone (SiO2 with iron oxide inclusions)

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Hag Stone (Sandstone with Boreholes)

Bored Sandstone (Sedimentary rock with lithophaga-style borings)

Petrified Wood

Silicified Wood (SiO2)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Banded Onyx (Calcite Marble)

Calcite (CaCO3) - Trap-rock or Cave Onyx

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Banded Agate / Lace Agate

Agate (Silica/Quartz) - SiO2

Quartz (Gravel fragment)

Quartz (Silicon Dioxide, SiO2)

Sandstone (Red Sandstone)

Arenite (primarily Quartz with Hematite cement)

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Quartz (Milky or Smoky variant)

Silicon Dioxide (SiO2)

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Gneiss

High-grade foliated metamorphic rock

Gneiss

Foliated Metamorphic Rock (Gneiss)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Agate Geode

Silicon Dioxide (SiO2) - variety Chalcedony/Quartz

Quartz Geode (Druzy)

Crystalline Silicon Dioxide (SiO2)

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)