Mineral (Synthetic Paper And Ink Polymorph)

Puddingstone (Quartzite Conglomerate with Jasper inclusions)

Metaconglomerate (Silicon Dioxide, SiO2)

Puddingstone

Conglomerate (typically quartz-rich or jasper-rich)

Yellow Sapphire

Corundum (Al2O3:Fe)

Orange Sapphire

Corundum (Al2O3)

Lapis Lazuli

Lapis lazuli (complex rock; primarily Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Emerald

Beryl, Be₃Al₂(SiO₃)₆, colored green mainly by chromium and/or vanadium

Lapis Lazuli

Lapis Lazuli (Complex aggregate including Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Clear Quartz (Faceted) / White Sapphire / Goshenite

Silicon Dioxide (SiO2) / Aluminium Oxide (Al2O3)

Faceted pale-green gemstone, likely prasiolite or green quartz

Quartz (SiO₂), likely prasiolite; identification is uncertain from the photograph

Horn Coral Fossil

Order Rugosa

Limestone

Calcareous sedimentary rock (CaCO3)

Limestone

Calcareous sedimentary rock (CaCO3)

Tumbled black stone, likely basalt or black jasper

Probably basalt (fine-grained plagioclase–pyroxene rock); exact identification is uncertain from the image

Limestone

Calcium Carbonate (CaCO3)

Red Jasper

Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)

Limestone

Calcium Carbonate (CaCO3)

Limestone or Chalk

Calcium Carbonate (CaCO3)

White Marble (Industrial/Architectural)

Recrystallized Calcite (CaCO3)

Tumbled brown-and-white feldspar-rich stone, likely granite or quartzite

Indeterminate; probably quartz–feldspar aggregate (granite) or quartzite, with iron-oxide staining

Aquamarine in Onyx / Blue Topaz Pendant

Beryl (Be₃Al₂Si₆O₁₈) or Topaz (Al₂SiO₄(F,OH)₂)

Quartz Pebble with Muscovite Mica

Quartzite / Quartz-Mica Schist pebble (SiO2 with KAl2(AlSi3O10)(OH)2)

Likely diamond accent

Diamond (crystalline carbon, C)

Pearls (likely freshwater cultured pearls)

Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin

Quartzite (Engineered Stone)

Silicon Dioxide (SiO2) based synthetic composite

Slate

Slate (foliated metamorphic rock, primarily composed of quartz, illite, chlorite, and micas)

Polished black stone egg, probably black obsidian

Obsidian, a natural volcanic glass; composition primarily silica-rich glass (approximately SiO₂), with variable iron and other trace elements

Blue Sapphire

Corundum (Al2O3)

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)

Porphyritic Basalt

Basalt with plagioclase phenocrysts

Carrara Marble

Metamorphosed Limestone (principally Calcium Carbonate, CaCO3)

Ruby (Faceted)

Corundum (Al2O3 with Cr trace elements)

Banded Iron Formation (BIF) / Red Jasper with Hematite

Ferruginous Chert (primarily Quartz [SiO2] and Hematite [Fe2O3])

Gowganda Tillite (Puddingstone)

Glacial Tillite (Diamictite) with Jasper inclusions

Limestone

Calcareous sedimentary rock (CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Orange Quartzite (or Iron-Stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide impurities (Fe2O3)

Rounded granite pebble

Granite; chiefly quartz, feldspar, and mica

Limestone (Chalk / Calcite Rock)

Calcium Carbonate (CaCO3)

Man-made Jewelry (Metal and Glass/Plastic)

Synthetic Alloy and Amorphous Solid (SiO2/Polymer)

Likely graphite-rich schist (graphitic schist)

Graphitic schist; chiefly quartz, mica, and graphite (carbon), with possible pyrite or feldspar

Marble

Recrystallized Calcite (CaCO3)