Mineraloid (Man Made Origin)

Obsidian

Obsidian (volcanic glass; primarily SiO2)

Obsidian

Volcanic glass (high silica volcanic rock)

Obsidian

Volcanic Glass (70-75% SiO2 with MgO and Fe3O4)

Snowflake Obsidian

Spherulitic Obsidian (primarily SiO2 with Cristobalite inclusions)

Obsidian

Obsidian (Volcanic Glass), primarily SiO2

Limonite (Iron Ore Congcretion)

Limonite (a mixture of hydrated iron(III) oxide-hydroxides, FeO(OH)·nH2O)

Dark polished stone, possibly black tourmaline or dark quartzite

Uncertain from the image; possible schorl (NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) or quartz-rich rock

Polished blue stone, possibly sodalite

Uncertain from the image; blue sodalite (Na₈(Al₆Si₆O₂₄)Cl₂) is one possibility

Green glassy mineral specimen, likely rough emerald or green fluorite

Tentatively beryl (Be₃Al₂Si₆O₁₈), emerald variety; synthetic/man-made glass cannot be excluded from the photograph

Obsidian (likely snowflake-free black variety)

Volcanic glass; primarily SiO₂-rich rhyolitic composition

Green Aventurine

Quartz (SiO2) with Fuchsite inclusions

Clear faceted gemstone in an ornate metal bracelet

Unidentified transparent faceted stone; possibilities include quartz (SiO₂), zircon (ZrSiO₄), or glass—image alone cannot distinguish them

Unidentified rough mineral/rock fragment

Indeterminate from image; possibly quartz-rich material or weathered carbonate rock

Spider Conch Shell

Lambis lambis (Calcium Carbonate, CaCO3)

Diamond (in jewelry setting)

Diamond (C - Carbon)

Mahogany Obsidian

Volcanic glass containing Hematite or Magnetite (SiO2 + Fe2O3)

Fire Opal (in Matrix)

Hydrated Silica (SiO2·nH2O)

Small faceted diamond-like gemstones

Likely diamond (crystalline carbon, C), but visual identification is uncertain

Kambaba Jasper

Rhyolite (Volcanic rock) or Stromatolite (debated)

Black Obsidian

Amorphous volcanic glass (SiO2)

Obsidian (specifically Mahogany Obsidian)

Volcanic glass (high silica content, SiO2)

Obsidian with Mahogany Phasing

Volcanic Glass (SiO2 + Fe2O3)

Tumbled mahogany obsidian

Volcanic glass; primarily SiO₂ with iron-oxide-rich brown inclusions

Obsidian

Obsidian (Volcanic Glass; SiO2 content > 70%)

Mahogany Obsidian

Volcanic Glass (SiO2 + Fe2O3)

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Green Fluorite

Calcium Fluoride (CaF2)

Titanium Aura Quartz (Aura Quartz)

Titanium-coated Silicon Dioxide (SiO2)

Pink faceted gemstone, possibly pink sapphire

Uncertain from the image; possibly corundum (Al₂O₃)

Larimar

Pectolite

Obsidian (likely black volcanic glass)

Obsidian; predominantly silica-rich rhyolitic volcanic glass (approximately 70– on 80% SiO₂)

Polished black obsidian

Volcanic glass, predominantly rhyolitic silica (SiO₂)

Likely obsidian fragment

Volcanic glass, predominantly silica-rich rhyolitic composition (SiO₂-rich)

Obsidian (likely Apache tear or flaked obsidian)

Volcanic glass; primarily rhyolitic silica glass (SiO₂-rich, non-crystalline)

Mahogany Obsidian

Obsidian (Volcanic Glass with Hematite inclusions)

Gold Sheen Obsidian

Volcanic Glass (SiO2 + impurities)

Mahogany Obsidian

Volcanic glass (SiO2 with Hematite/Magnetite inclusions)

Polished mahogany obsidian (likely)

Volcanic glass; primarily silica-rich rhyolitic glass (SiO₂), with iron oxides

Polished black obsidian pyramid/block

Obsidian — natural volcanic glass, chiefly rhyolitic silica (approximately 70–75% SiO₂)

Snowflake Obsidian

Volcanic Glass with Spherulite Inclusions (primarily SiO2)

Black Obsidian

Obsidian (Volcanic Glass)

Snowflake Obsidian

Volcanic Glass with Spherulite Inclusions (70–75% SiO2)