Man Made Object (Metalwork)

Diamond

Carbon (C)

Aura Quartz / Rainbow Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Diamond

Carbon (C)

Corundum (Pink Sapphire / Ruby)

Al2O3 (Aluminum Oxide)

Diamond (in a jewelry setting)

Carbon (C)

Amber (Copal)

Organic gemstone, fossilized tree resin (often immature amber or copal)

Brecciated jasper (likely red-and-cream jasper)

Jasper, an opaque microcrystalline variety of quartz; primarily cryptocrystalline SiO₂ with iron-oxide staining and possible chalcedony/quartz veining

Tumbled sodalite with white calcite veining

Sodalite, Na8(Al6Si6O24)Cl2, commonly intergrown with calcite, CaCO3

Polished serpentine or green jasper pebble

Likely serpentine-group silicate, chiefly antigorite/lizardite; possibly iron-rich jasper

Beach Pebble (likely Quartz or Chalcedony)

Silicon Dioxide (SiO2)

Diamond

Native Carbon (C)

Blue Chalcedony Cube

Silicon Dioxide (SiO2)

Fossil Shark Tooth

Lamniform (Mackerel Shark) fossil tooth, likely Otodus or Cretalamna

Corundum (Ruby variety)

Aluminium oxide (Al2O3)

Diamond (as set in a gold ring)

Carbon (C)

Turquoise

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

Diamond

Carbon (C)

Rough Diamond

Native Carbon (C)

Diamond (in a cluster setting)

Crystallized Carbon (C)

Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)

Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)

Banded Agate

SiO2 (Silicon Dioxide)

Diamond Druzy (Crystalline Diamond)

Carbon (C)

Corundum (Sapphire/Ruby in Matrix)

Corundum (Al2O3)

Black Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Diamond

Diamond (pure native carbon, C)

Granite (weathered pebble)

Granite (plutonic igneous rock)

Slate

Slate (Metamorphic silicate rock)

Lapis Lazuli

Lapis Lazuli (a rock type, not a single mineral, composed primarily of lazurite, calcite, and pyrite)

Grey Chalcedony

Silicon Dioxide (SiO2)

Diamond (as featured in jewelry)

Diamond (C - pure carbon)

Synthetic Faux Fur Fursuit

Polyacrylonitrile / Polyester (Synthetic Textile)

Tiger Shark Fossil Tooth

Galeocerdo cuvier (fossilized)

Green Aura Quartz

Silicon Dioxide (SiO2) bonded with metallic vapors (typically Gold, Chromium, or Titanium)

Turquoise (likely stabilized or simulated Howlite)

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

Chert (Flint/Jasper variety)

Microcrystalline Quartz (SiO2)

Note on Image Identification: Textile

N/A (Anthropogenic material)

Diamond (Cut jewelry specimen)

Diamond (pure Carbon, C)

Ruby in Matrix

Corundum (Al2O3)

Basalt

Basalt

Rose Quartz (likely carved)

Rose Quartz (SiO2)

Coquina

Bioclastic Limestone

Coquina

Bioclastic Limestone