Mixed

Inukshuk Rock Sculpture (composed of Granite, Slate, and Amethyst)

Silicon Dioxide (Amethyst portion, SiO2) with mixed silicate rock assemblage

Tumbled rhodonite

Rhodonite, manganese inosilicate (MnSiO₃), commonly mixed with quartz and manganese oxides

Limonite (Iron Ore/Sandstone mixture)

Limonite (FeO(OH)·nH2O) often mixed with Goethite and sedimentary matrix

Porphyritic Igneous Rock / Porphyry

Porphyry (Plagioclase/Quartz phenocrysts in a finer-grained groundmass)

Iron-rich sulfide ore, likely pyrite-bearing gossan

Pyrite (FeS₂), possibly mixed with iron oxides/hydroxides and other sulfides

Tiffany Stone

Bertrandite (Be4Si2O7(OH)2) mixed with Fluorite (CaF2), Opal, and Chalcedony

Fossiliferous Limestone (Chert/Clay mixed)

Calcium Carbonate (CaCO3) / Silicon Dioxide (SiO2)

Mixed Agate and Lapis Lazuli Bracelet

Chalcedony (SiO2) and Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Mixed Tumbled Quartz and Chlorite Quartz

Silicon Dioxide (SiO2) with inclusions

Chakra Stone Bracelet (mixed gemstones)

Multi-mineral/Gemstone assembly (primarily Quartz variety beads)

Graphite

Graphite (Carbon, C)

Black Tourmaline (Schorl)

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Rough Gemstone Grains (Mixed Sapphires and Quartz)

Corundum (Al2O3) and Quartz (SiO2)

Mixed Quartz Bracelet (Rose Quartz and Larimar-colored beads)

Silicon Dioxide (SiO2) with various inclusions

Mixed Tumbled Stones (Mostly Agate, Jasper, and Quartz)

Silicon Dioxide (SiO2)

Aquamarine

Aquamarine (Beryl variety) - Be3Al2(Si6O18)

Garnet-bearing granite or pegmatitic granitic rock

Coarse-grained granitoid, likely granite or pegmatite, composed mainly of quartz and feldspar with almandine/spessartine garnet and dark biotite or amphibole

Rhyolitic Tuff (Breccia Type)

Rhyolitic Pyroclastic Rock (Mixed Silicates including Quartz, Feldspar, and Volcanic Glass)

Botryoidal hematite (speculative)

Hematite, iron(III) oxide (Fe₂O₃), possibly mixed with goethite or magnetite

Tumbled pink-and-white quartz

Quartz, silicon dioxide (SiO₂), likely rose quartz mixed with milky quartz

Weathered iron-rich rock, possibly limonite/goethite

Limonite (hydrated iron oxides; commonly goethite, FeO(OH), mixed with hematite)

Yellow Ochre / Limonite

Limonite (inter-mixed iron oxides and hydroxides, primarily FeO(OH)·nH2O)

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite)

Ironstone Concretion (Limonite/Hematite Nodules)

Ironstone (principally Limonite FeO(OH)·nH2O or Hematite Fe2O3 mixed with silica/clay)

Black Tourmaline (Schorl)

Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3)(OH)3(OH))

Mookaite Jasper

Siliceous sedimentary rock (variety of Jasper/Chert)

Malachite-bearing copper ore

Malachite, Cu₂CO₃(OH)₂, likely mixed with chrysocolla, copper minerals, and iron oxides

Tumbled Mineral Collection (Amethyst, Celestite, K2 Jasper, Rose Quartz, Ruby in Zoisite, Que Sera Stone)

Mixed Mineral Specimens (Quartz SiO2, Celestite SrSO4, Corundum Al2O3 with Zoisite, etc.)

Mineral and Rock Collection (Assorted)

Mixed collection including Quartz (SiO2), Jasper (SiO2 with impurities), Rose Quartz, and Aventurine

Orgonite Pyramid (containing Amethyst and mixed minerals)

Silicon Dioxide (SiO2) in synthetic resin

Fancy Jasper

Chalcedony (cryptocrystalline quartz) with inclusions

Garnet (likely Almandine, Pyrope, or a blend)

Garnet group minerals: X3Y2(SiO4)3, where X and Y represent various metal ions (e.g., Almandine: Fe3Al2(SiO4)3, Pyrope: Mg3Al2(SiO4)3)

Shale

Shale

River Cobbles (Basalt, Quartzite, and Sandstone mix)

Fluvial detritus (primarily SiO2, Plagioclase, and Pyroxene mix)

Chrysocolla in Quartz (Quantum Quattro variant)

Hydrated copper silicates (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) often mixed with SiO2

Quartz (in matrix)

Quartz (SiO₂)

Brick

Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)

Unakite

Unakite (epidote-bearing altered granite; mainly pink potassium feldspar, green epidote, and quartz)

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2 mixed with SiO2)

Tiger's Eye (specifically Blue/Golden mixed or Hawk's Eye)

Pseudomorph of Quartz after Crocidolite (SiO2)

Caliche (also known as hardpan, calcrete, kankar)

Primarily composed of calcium carbonate (CaCO₃), often mixed with other minerals like quartz, clay minerals, and iron oxides.