Igneous And Metamorphic Derivative (Weathered)

Quartz (Milky/Common variant)

Silicon Dioxide (SiO2)

Labradorite

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

Magnetite with Pyrite or Chalcopyrite inclusions

Magnetite (Fe3O4) with Pyrite (FeS2)

Magnetite (Lodestone variety)

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

Quartz (Citrine or Iron-Stained variety)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Citrine

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Pyrite on Quartz

Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)

Quartz Pebble (Chalcedony/Agate variety)

Silicon Dioxide (SiO2)

Chert (specifically Green Chert/Jasper)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Chert (Iron-Stained)

Microcrystalline Silica (SiO2)

Jasper (likely river-tumbled)

Jasper (Silica/Silicon Dioxide, SiO2)

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

Quartz (SiO2 - Silicon Dioxide)

Fossilized Bone Fragment

Permineralized Vertebrate Fossil (Hydroxyapatite replaced by Minerals)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Aventurine (likely Green Aventurine)

Silicon Dioxide (SiO2) with various inclusions

Epidosite (Epidote-rich rock)

Epidosite (consisting primarily of Epidote: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))

Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Banded Gneiss

Gneiss (High-grade Metamorphic Rock)

Biotite Schist (likely)

Biotite Schist (rock), Biotite (mineral)

Strawberry Quartz

Quartz (SiO₂) with Goethite (α-FeO(OH)) and/or Lepidocrocite (γ-FeO(OH)) inclusions

Pyrite

Pyrite (FeS₂)

Citrine

Quartz (SiO2) - variety Citrine

Black Star Diopside

Diopside (CaMgSi2O6) with Magnetite inclusions

Quartzite

Quartzite (SiO2)

Shale or Argillite

Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)

Strawberry Quartz

Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite

Nuummite

Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite)

Gneiss (Schistose)

Gneiss

Banded Gneiss

Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Biotite/Amphiboles)

Gneiss (specifically a granitic gneiss cobble)

Gneiss (high-grade regional metamorphic rock)

Granitic Gneiss

Gneiss (Polymetamorphic Granitic Gneiss)

Soapstone

Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)

Chalcopyrite

Chalcopyrite (CuFeS2)

Rose Quartz

Rose Quartz (SiO2)

Blue Sapphire

Corundum (Al2O3)