Coquina (Limestone)
Bioclastic Limestone (CaCO3)
sedimentary
Category
Not A Natural Rock
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Glauconitic Sandstone
Greensand (Glauconite-bearing sandstone)
sedimentary
Jasper
Jasper (SiO2 plus impurities)
sedimentary
Coquina
Bioclastic Limestone (Coquina)
sedimentary
Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Yellow Quartz / Citrine Pebble
Silicon Dioxide (SiO2)
mineral
Tumbled pale greenish stone, likely serpentine or altered limestone
Probable serpentine-group rock (antigorite/lizardite), possibly serpentinite; identification is visual only
metamorphic
Citrine (likely Heat-Treated)
Quartz (Silicon Dioxide, SiO2)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper aluminum phosphate)
gemstone
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Portable Ceramic Space Heater
Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements
not a rock (synthetic/industrial object)
Dyed Quartz (imitating Emerald/Green Quartz)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Opalite
Man-made Opalized Glass (Synthetic Glass)
gemstone
Mystic Topaz
Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating
mineral
Dyed Quartz / Rose Quartz Imitation
Silicon Dioxide (SiO2) with artificial pigment
mineral
Dragon Vein Agate (Dyed/Treated)
Agate (SiO2)
mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Clear Quartz (Rock Crystal Fragments)
Silicon Dioxide (SiO2)
mineral
Granite
Granite (a phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)
igneous
Lemon Quartz (or Yellow Calcite)
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
gemstone
Dyed Blue Agate (Dragon Vein Agate)
Silicon Dioxide (SiO2) with artificial cobalt/organic dyes
mineral
Leland Blue Stone
Anthropogenic Iron Smelting Slag
mineraloid
Brick
Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)
Man-made material (constructed)
Laterite (iron-rich nodule, possibly Bauxite as a subtype)
Laterite (composed of various minerals including goethite, hematite, gibbsite, etc.)
Sedimentary
Bornite
Copper Iron Sulfide (Cu5FeS4)
mineral
Ferruginous Quartz (Hematoid Quartz)
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
mineral
Dalmatian jasper
Dalmatian stone, typically a leucocratic alkali-feldspar-rich porphyritic igneous rock with black arfvedsonite or aegirine inclusions
igneous
Citrine
Silicon Dioxide (SiO2)
mineral
Rough Diamond
Diamond (Native Carbon, C)
mineral
Opalite
Man-made opalized glass
mineral
Diamond
Diamond (pure Carbon, C)
mineral
Iridescent coated quartz (likely synthetic/display gemstone)
Quartz, silicon dioxide (SiO₂), likely faceted and surface-coated; exact material cannot be confirmed visually
gemstone
Rainbow Hematite (Titanium-Coated Hematite)
Titanium-treated Hematite (Fe2O3)
mineral
Raw Citrine
Citrine (Silicon Dioxide, SiO2)
mineral
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
Mineral
Quartz (Citrine / Yellow Quartz)
Silicon Dioxide (SiO2)
mineral
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
not a rock (anthropogenic material/technofossil)
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
gemstone