Mineral Or Sedimentary Rock (With Mineral Inclusions)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese

Green Aventurine

Aventurine Quartz (SiO2)

Rose Quartz

Silicon Dioxide (SiO2)

Sandstone

Arenite (SiO2 based)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Greenschist

Greenschist facies metamorphic rock

Fossilized Coral

Cnidaria (Anthozoa), often replaced by Calcium Carbonate (CaCO3) or Silica (SiO2)

Agate (Grey Agate Slice)

Microcrystalline Quartz (SiO2)

Banded Agate (River Stone)

Agate (Silicon Dioxide - SiO2)

Banded Flint (Polished Stripe Flint)

Silicon Dioxide (SiO2) - variety of Chert

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chalcedony (Botryoidal/Agate nodule)

Microcrystalline Quartz (SiO2)

Schist

Mica Schist

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Sandstone (with biological crust)

Arenite (SiO2 based)

Gneiss

Gneiss (high-grade metamorphic rock typically composed of quartz, feldspar, and mica)

River Siltstone Pebble

Siltstone (primarily composed of silica and clay minerals)

Diamond Drill Core (Greenschist and Quartzite)

Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and clay impurities

Granite (Dioritic or Hornblende-rich)

Phaneritic Plutonic Felsic to Intermediate Igneous Rock

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Quartz with Mica inclusions (likely Iron-stained)

Silicon Dioxide (SiO2) with Phyllosilicates

Rose Quartz

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone (Quartzose)

Arenite (composed primarily of SiO2)

Dalmatian Stone

Dalmatian Jasper (Aplitic Rock)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Sandstone (likely Graywacke or Lithic Sandstone)

Arenite / Wacke (SiO2 based with lithic fragments)

Fossil Coral

Fossilized Scleractinia or Tabulata (various genera/species)

Conglomerate

Clastic sedimentary rock (Conglomerate)

Red Sandstone

Arenite (with Iron Oxide / Hematite), Formula: SiO2 (Quartz) + Fe2O3 (Hematite coating)

Dalmatian Stone (commonly called Dalmatian Jasper)

Peralkaline Rock (mixed Feldspar, Quartz, and Arfvedsonite)

Specular Hematite

Hematite (Fe2O3)

Travertine (Ceramic Tile)

Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)

Ferruginous Sandstone (Gerrit)

Arenite with Iron Oxide cementation

Quartz (likely Rose Quartz or Milky Quartz based on color)

Quartz (SiO2 - Silicon Dioxide)

Basalt with inclusion

Basalt (Aphanitic-Porphyritic texture)

Halite (Rock Salt)

Halite (NaCl)

Fluorite (likely Green Fluorite variant)

Calcium Fluoride (CaF2)