Man Made Mineral Simulant (Glass)

Asphalt Concrete

Bituminous Concrete

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Red goldstone beads

Goldstone (man-made copper-bearing glass; not a natural mineral)

Diamond

Native Carbon (C)

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

Polished labradorite pendant

Labradorite, a calcium-rich plagioclase feldspar (approximately NaAlSi₃O₈–CaAl₂Si₂O₈)

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)

Opalite

Synthetic Glass (Amorphized Silicon Dioxide)

Aura Quartz (Rainbow Quartz)

Silicon Dioxide (SiO2) with metallic vapor coatings

Green Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2

Green obsidian (likely molded or heat-treated glass-like specimen)

Volcanic glass; predominantly rhyolitic composition (silica-rich amorphous SiO₂)

Sea Glass

Amorphous silicon dioxide (Man-made glass weathered by nature)

Colorless quartz crystal (likely quartz fragment)

Quartz, silicon dioxide (SiO₂)

Asphalt (Road Aggregate)

Asphalt concrete / Bituminous mixture

Ring with an Orange Inlay

N/A (Man-made object)

Gemstone ring (stones not reliably identifiable from the image)

Likely faceted yellow stones and clear stones set in a metal band; species and treatments are indeterminate visually

Sea Glass

Amorphous Silicon Dioxide (Man-made glass weathered by nature)

Goldstone

Man-made glass containing cuprous oxide

Polished silver sheen obsidian heart

Obsidian (volcanic glass), primarily rhyolitic silica-rich glass

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)

Green sea glass (likely slag glass or bottle glass)

Man-made soda-lime silicate glass; not a naturally occurring mineral

Cobalt Glass Slug (Cullet)

Man-made Silicate Glass with Cobalt Oxide (CoO)

Sandstone Concretion

Limonitic Sandstone Concretion

Stainless Steel (Polished)

Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)

Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Blue sea glass or blue glassy mineral fragment

Uncertain; likely man-made soda-lime glass, not a natural mineral

Black Obsidian

Amorphous volcanic glass (SiO2 + impurities)

Fluorite (Polished Point/Tower)

Calcium Fluoride (CaF2)

Likely blue-green glassy slag or a weathered mineral fragment

Unidentified; the image does not show diagnostic features sufficient for a mineral identification

Goldstone (likely red/brown aventurine glass)

Man-made aventurine glass; copper-bearing silicate glass (not a natural mineral)

Chert Concretion

Chert (Microcrystalline Quartz, SiO2)

Goldstone (brown goldstone)

Man-made aventurine glass, typically copper-bearing silica glass

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Titanium Aura Quartz

Titanium bonded Silicon Dioxide (SiO2 + Ti)

Sea Glass (specifically Frosted White)

Amorphous Silica (substance: Sodium-calcium silicate glass)

Asphalt Concrete (Bituminous Pavement)

Aggregates in Bitumen Matrix

Aluminum Slag

Anthropogenic Aluminum (Al)

Blue glassy fragment among beach gravel

Likely cobalt-blue man-made glass; not a natural mineral specimen

Tumbled milky chalcedony (likely common opalite-like quartz)

Chalcedony, microcrystalline SiO₂; possibly pale common opal, hydrated SiO₂·nH₂O

Goldstone (Brown/Gold)

Aventurine Glass (Man-made glass with Copper inclusions)

Goldstone

Aventurine Glass (Man-made glass with copper inclusions)

Aura Quartz (Titanium Quartz)

Titanium-coated Silicon Dioxide (SiO2 + Ti)