Organic Gemstone (Not A Rock Or Mineral In The Traditional Sense, But Bio Mineralized Material)

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Carnelian

Carnelian (a variety of Chalcedony); SiO2 (Silicon Dioxide)

Milky Quartz (with Iron Oxide staining)

Silicon Dioxide (SiO2)

Jasper (likely Brecciated or Multi-colored)

Jasper (SiO2)

Pegmatite (Granite Pegmatite)

Intrusive Igneous Rock (Granite Pegmatite)

Emerald in Matrix

Beryl (Be3Al2Si6O18) containing Chromium/Vanadium impurities

Sandstone (with Iron Staining)

Clastic sedimentary rock (High Silica / Iron Oxide)

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Clear Quartz Sphere

Quartz (Silicon Dioxide, SiO2)

Turquoise in Matrix

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

Amazonite

K(AlSi3O8) - Lead-bearing Microcline (Potassium Feldspar)

White Opal (Common)

Hydrated Silica (SiO2·nH2O)

Caribbean Calcite

Calcium Carbonate with Argonite (CaCO3)

Sandstone

Arenite (a specific type of sandstone with less than 15% matrix)

Sunstone (Orthoclase Feldspar variant)

Orthoclase (KAlSi3O8) with inclusions

Pegmatite

Coarse-grained Igneous Rock (Granitic Pegmatite)

Sandstone (specifically Arkose or Quartz Arenite)

Arenite (primarily SiO2 with possible Feldspar)

Bumble Bee Jasper

Volcanic Tuff (mixture of SiO2, CaCo3, S, and As2S3)

Diamond (or Cubic Zirconia imitation)

Carbon (C) - Native Element

Sandstone

Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)

Sandstone (Micaceous/Feldspathic variant)

Arenite (specifically subarkose or lithic arenite)

Sandstone (with Liesegang rings or Oxidation)

Arenite (primarily Quartz SiO2 with Iron Oxide Fe2O3 staining)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz (or Rock Crystal)

Quartz (SiO₂)

Sandstone (Ferruginous)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)

Milky and Citrine-type Quartz

Silicon Dioxide (SiO2)

Blue Howlite (Dyed)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Diamond

Carbon (C)

Sandstone (specifically Arkose or Ferruginous Sandstone)

Sandstone (SiO2 with iron oxide inclusions)

Turquoise

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

Fulgurite

Fulgurite (Lechatelierite), amorphous SiO2

Amber

Succinite (specifically for Baltic amber); chemical formula approx. C10H16O

Sandstone (Ferruginous)

Arenite (with Iron Oxide cement)

Man-made Synthetic Material (Plastic/Composite)

Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Blue Tiger's Eye

Crocidolite in Quartz (altered)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Sandstone (likely Fossiliferous)

Arenite / Sedimentum arenaceum