Mineral (Processed Alloy)

Granite

Phaneritic Felsic Igneous Rock

Green Opal / Common Opal

Hydrated Silicon Dioxide (SiO2·nH2O)

Grape Agate

Botryoidal Amethystine Chalcedony (SiO2)

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Green Calcite

Calcium Carbonate (CaCO3)

Quartz Vein Rock

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Milky Quartz / Chalcedony

Silicon Dioxide (SiO2)

Plum Blossom Tourmaline

Tourmaline with Lepidolite (Na,Ca)(Li,Mg,Al)3Al6(BO3)3Si6O18(OH)4

Lapis Lazuli

Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])

Sandstone

Arenite (Sandstone)

Quartz (Milky / Massive Quartz)

Silicon Dioxide (SiO2)

Aura Quartz / Rainbow Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Tourmalinated Quartz

Silicon Dioxide (SiO2) with Schorl inclusions (NaFe2+3Al6(BO3)3Si6O18(OH)4)

Milky Quartz

Silicon Dioxide (SiO2)

Serpentinite (Serpentine Rock)

Serpentinite is a rock composed of one or more serpentine group minerals, chiefly antigorite, chrysotile, and lizardite, with the general formula (Mg,Fe)3Si2O5(OH)4. Often includes other minerals like magnetite, talc, and chromite.

Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Green Granite / Verd Antique

Serpentinite / Metasomatized Peridotite

Quartz Vein in Matrix / Quartzite

Silicon Dioxide (SiO2) with host rock

Peridot (Olivine)

Olivine ((Mg, Fe)2SiO4)

River Pebble (Grantoid/Quartzite)

Quartz-rich igneous rock (Granitoid)

Serpentine Schist with Quartz Vein

Serpentine Schist (a type of Metamorphic rock). The white band is likely Quartz (SiO2).

Travertine (Ceramic Tile)

Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)

Banded Agate (Tumbled)

Silicon Dioxide (SiO2)

Sparkling Druzy Quartz on Matrix

Silicon Dioxide (SiO2) with iron oxide inclusions

Petrified Wood

Silicified Wood (SiO2)

Fossiliferous Rock (likely Dinosaur Fossil in Matrix)

Permineralized Vertebrate Fossil (Calcium Carbonate/Silica replaced bone material)

Banded Jasper

Silicate Mineral (Microcrystalline Quartz / SiO2)

Chakra Stone Bracelet

Mixed Mineral Assembly (Scoria, Amethyst, Lapis Lazuli, Turquoise/Howlite, Impression Jasper, Tiger's Eye, Carnelian, Red Jasper)

Magnetite (potentially Lodestone)

Magnetite (Iron(II,III) oxide, Fe3O4)

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

Limitation Concretion

Ironstone Concretion (Goethite/Limonite)

Petrified Wood

Silicified Wood (SiO2)

Tiger's Eye

Silicified Riebeckite Asbestos (SiO2 with inclusions)

Gold Nugget / Placer Gold

Native Gold (Au)

Mahogany Obsidian

Obsidian with Hematite inclusions (SiO2 + Fe2O3)

Ironstone / Limonite Concretion

Hydrated Iron Oxide Rock (FeO(OH)·nH2O with SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Caribbean Calcite

Calcium Carbonate (CaCO3) with Aragonite (CaCO3)

Milky Quartz

Silicon Dioxide (SiO2)

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)

Mahogany Obsidian

Volcanic Glass with Hematite or Magnetite (SiO2 + Fe2O3)