Manufactured Stone

Slag Glass (Cullet)

Amorphous Silica (man-made), primarily SiO2 with trace metal oxides

Amber (Simulated/Faturan Style)

Resin mix (Likely Phenolic/Celluloid if synthetic, Succinite if natural)

Metal Chain Belt with Square Plates

Not applicable (man-made)

Cut colorless gemstone, likely quartz or glass imitation

Most plausibly rock crystal (clear quartz, SiO₂); synthetic glass cannot be ruled out from the image

Fossilized bone fragment (probable large mammal limb bone)

Mineral-replaced or permineralized bone; exact taxon cannot be determined from the image

Blue Sapphire

Corundum (Al2O3)

Tumbled granite (likely biotite granite)

Granite: quartz + feldspar + biotite/hornblende

Polished black obsidian

Volcanic glass; primarily silica-rich rhyolitic composition (SiO₂)

Blue quartzite or blue aventurine glass-like aggregate

Quartzite, predominantly SiO₂ (identification uncertain from image)

Polished black stone, likely black obsidian

Obsidian — volcanic glass, chiefly SiO₂

Heliotrope (Bloodstone) Sphere

Cryptocrystalline Quartz (SiO2 with Iron Oxide inclusions)

Green calcite (likely)

Calcite, CaCO₃

White Quartz Star-cut crystal

Silicon Dioxide (SiO2)

Polished black stone, likely black obsidian

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

Red vesicular volcanic rock, likely scoria

Scoria (mafic volcanic rock; commonly basaltic, composed mainly of plagioclase, pyroxene, and iron-rich glass)

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Blue Goldstone

Aventurine glass (Synthetic borosilicate glass with cobalt and metallic inclusions)

Faceted transparent gemstone, likely glass or cubic zirconia

Uncertain from image; possible cubic zirconia (zirconium dioxide, ZrO₂) or glass imitation

Costume Jewelry with Synthetic Gemstones

Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)

Faceted Glass (Costume Jewelry)

Amorphous Silicon Dioxide with colorants (Glass)

Polished black stone specimen, likely black basalt or diabase

Basalt/diabase; chiefly plagioclase feldspar and pyroxene, possibly magnetite

Red jasper (likely polished and carved)

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Diamond cluster ring (likely jewelry setting)

Diamond, crystalline carbon (C), cubic crystal system

Polished black obsidian pyramid/block

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

Blue Goldstone

Synthetic glass with copper or cobalt/manganese inclusions

Stainless Steel Spoon

Iron-Chromium Alloy (Fe + Cr + Ni)

Note: This is a Man-Made Object (Costume/Prop Patch)

Synthetic fiber and pigments (Cellulose/Plastic-based composite)

Baked-clay ceramic fragment (likely brick or pottery)

Fired clay, primarily aluminosilicate minerals; not a natural rock

Faceted glass-like gemstone (likely synthetic quartz or cubic zirconia)

Identification uncertain; possibilities include synthetic quartz (SiO₂) or cubic zirconia (ZrO₂)

Clear quartz pebble or glass-like quartz specimen

Quartz (silicon dioxide, SiO₂)

Cubic Zirconia

Zirconium dioxide (ZrO2)

Hematite bead bracelet

Hematite (iron(III) oxide, Fe₂O₃), likely polished specular hematite

Weathered gray metamorphic rock, likely slate or phyllite

Foliated metapelite; commonly muscovite–quartz–chlorite, possibly with iron-oxide staining

Note: Item is not a geological specimen

Guitar Components (Steel, Nickel, Plastic, Wood)

Likely weathered granite or granitic pegmatite fragment

Granite; primarily quartz (SiO₂), feldspar, and mica

Pink faceted gemstone, likely synthetic cubic zirconia or pink sapphire

Uncertain from image; possible zirconium dioxide (cubic zirconia, ZrO₂) or corundum (pink sapphire, Al₂O₃)

Opalite (Synthetic Moonstone/Opal)

Synthetic Silica Glass

Blue glass-like cabochon, likely dyed or synthetic material

Uncertain; possibly dyed chalcedony, synthetic spinel, or blue glass

Dyed or synthetic turquoise-blue glass-like specimen

Likely man-made colored glass or resin; exact identification requires testing

Beaded blue-and-green gemstone jewelry

Likely dyed or treated chalcedony/agate and green aventurine or glass-like stone; exact identification requires testing

Malaysian 50 Sen Coin

Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)

Gastly (Trick or Trade Halloween Series)

Cellulose-carbonaceous composite (Lignocellulose laminated with pigmentary polymers)