Mineral (Specifically, A Variety Of The Mineral Species Pyrope Almandine Garnet)

Banded Agate (specifically Eye Agate / Chalcedony)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Fossil Coral

Cnidaria fossil (often Calcium Carbonate / CaCO3)

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Emerald (Faceted Gemstone)

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Agate

Silicon Dioxide (SiO2)

Fossilized Bone Fragment

Permineralized Skeletal Element (Likely Vertebrate)

Hypersthene

Hypersthene ((Mg,Fe)SiO₃)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Jasper (specifically Picture Jasper or Landscape Jasper)

Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz

Aquamarine

Beryl (Be₃Al₂Si₆O₁₈), specifically a blue or cyan variety

Amber

Amber (Fossilized Tree Resin)

Plagioclase Feldspar (specifically Albite/Oligoclase)

(Na,Ca)(Si,Al)4O8

Druzy Agate (specifically Black Druzy Agate)

Silicon Dioxide (SiO2)

Green Aventurine

Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)

Ocean Jasper (Orbicular Jasper)

Silicon Dioxide (SiO2)

Mica Schist

Mica Schist (primarily Muscovite and Biotite composition)

Marble

Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)

Amazonite

Potassium Feldspar (KAlSi3O8) with lead impurities

Schist

Mica Schist

Clear Quartz Cluster

Silicon Dioxide (SiO2)

Gneiss

Gneiss (a metamorphic rock)

Turquoise (Blue Howlite imitation)

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Granite (Orthoclase rich)

Granite (composed primarily of Quartz and Potassium Feldspar KAlSi3O8)

Mica Schist

Mica Schist (primarily Muscovite and Quartz composition)

Thunderegg (specifically a Jasper/Agate-filled Geode nodule)

Silicon Dioxide (SiO2) within Rhyolitic Matrix

Chrome Diopside

Diopside (Magnesium Calcium Silicate) - CaMgSi2O6 + Cr

Petrified Wood

Silicified Wood (primarily SiO2 - Silicon Dioxide)

Greenschist

Greenschist (Chlorite-actinolite schist)

Smoky Quartz

Smoky Quartz (SiO2)

Ruby (Raw/Rough)

Corundum (Al2O3 with Chromium trace)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Schist

Mica Schist (Medium-grade metamorphic rock)

Blue Chalcedony and Picture Jasper Beads

Blue Chalcedony (SiO2), Picture Jasper (SiO2)

Peridot (likely, based on color and appearance)

Olivine group mineral, specifically (Mg,Fe)2SiO4 (Forsterite-Fayalite solid solution series)

Schist

Mica Schist

Strawberry Quartz

Quartz (SiO2) with inclusions of Goethite or Hematite

Citrine

Quartz (Silicon Dioxide - SiO2)

Aragonite (variety 'Flos Ferri')

Aragonite (CaCO3)

Jasper (Petrified Wood variant)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Greenschist (Chlorite Schist)

Greenschist (Metamorphic rock dominated by chlorite, actinolite, and epidote)

Red Jasper

Jasper (a variety of Chalcedony, SiO₂ with iron oxide inclusions)

Amazonite

Amazonite (KAlSi3O8 - Microcline)