Mineral Based Composite

Dyed Dalmatian Stone

Aplite (Alkali-feldspar granite) with Arfvedsonite

Red Sandstone

Arenite (high iron oxide content)

Unakite

Epidotized Granite

Specular Hematite (Iron Ore)

Iron(III) oxide (Fe2O3)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

Dalmatian Jasper

Feldspar porphyry (Microcline and Quartz with Arfvedsonite spots)

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Bioclasts

Unakite (Tumbled)

Epidotized Granite

Red Sandstone

Ferruginous Sandstone (SiO2 with Fe2O3)

Sandstone

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

Rough Diamond

Diamond (C)

Banded Quartzite or Gneissic Pebble

Quartzite with mafic inclusions (SiO2) or Banded Gneiss

Lapis Lazuli

Lazurite (primary mineral component), (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Limonite Concretion

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

Granite

Granite (Mainly Quartz, Feldspar, and Mica)

Dyed Dalmatian Jasper (Dalmatian Stone)

Perthitic Feldspar with Arfvedsonite inclusions

Tiger Iron

Tiger Iron (Composition: SiO2, Fe2O3, Fe3O4)

Red Sandstone

Arenite (Ferruginous Sandstone)

Kidney Stone

Calcium Oxalate (CaC2O4·nH2O)

Serpentinite

Serpentinite (composed primarily of mineral group (Mg,Fe,Ni,Al)3Si2O5(OH)4)

Pebble (river rock/beach pebble)

Pebble (clast size class)

Orange cabochon gemstone, likely amber or amber-like resin

Natural amber: fossilized plant resin (organic mineraloid), commonly succinite; exact identification requires testing

Rough Diamond

Diamond (Native Carbon, C)

Red Quartzite (Strawberry Quartz)

Quartzite (SiO2 with iron oxide inclusions)

Lapis Lazuli

Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Bauxite

Bauxite (mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))

Green Quartzite

Metamorphic rock primarily composed of Silicon Dioxide (SiO2) with mineral inclusions like fuchsite or chlorite

Sea Glass (Teal/Turquoise)

Amorphous Silica (SiO2) with trace metal oxides

Quartz pebble

Silicon Dioxide (SiO2)

Schist (with Iron Oxide)

Mica Schist

Rodonite

Rhodonite (MnSiO3)

Granite (Weathered)

Phaneritic Felsic Igneous Rock

Serpentine-rich serpentinite pebble

Serpentinite, composed chiefly of serpentine-group minerals (lizardite, antigorite, chrysotile), commonly with magnetite and minor brucite

Orbicular granite (likely larvikite or related granitic rock)

Granite composed mainly of quartz, feldspar, and dark mafic minerals; exact variety is uncertain from the image

Weathered iron-rich rock, likely laterite or ironstone

Ferruginous laterite/ironstone, composed mainly of goethite (FeO(OH)), hematite (Fe₂O₃), and clay minerals

Serpentinite

Serpentinite (composed primarily of serpentine group minerals like lizardite, chrysotile, or antigorite; Mg3Si2O5(OH)4)

Serpentinite

Serpentinite (composed largely of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile: Mg3Si2O5(OH)4)

Granite

Granite (a common rock name, not a single mineral species, composed primarily of quartz, feldspar, and mica/amphibole)

River Stone / Pebble

Clastic Sediment (composed largely of Quartz, Feldspar, and various rock fragments)

Lapis Lazuli (Lazurite crystals on Marble)

Lazurite / (Na,Ca)8[(S,Cl,SO4,OH)2|(AlSiO4)6]

Shale with Vein Infillings

Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.