Synthetic Or Natural Fiber

Tumbled tiger’s-eye

Quartz variety: fibrous chalcedony/quartz pseudomorph after crocidolite, SiO₂

Polished agate or chalcedony pebble

Microcrystalline quartz (SiO₂), likely chalcedony/agate

Jade bangle

Nephrite jade (compact amphibole aggregate; chiefly tremolite–actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂), possibly jadeite jade

Colorless faceted gemstone, likely synthetic cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); natural diamond is a less likely alternative

Goldstone (aventurine glass)

Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone

Faceted clear gemstone, likely glass or cubic zirconia

Undetermined; could be synthetic cubic zirconia (ZrO₂) or cut glass (silica-based)

Wood Beads (Palmwood/Ebony)

Various species for wood, but often refers to woods like Palmwood (e.g., Borassus flabellifer) or Ebony (Diospyros spp.) for their distinctive grain and hardness.

Tiger’s eye

Chatoyant quartz (fibrous quartz pseudomorph after crocidolite), SiO₂

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Colorless faceted gemstone, likely glass or cubic zirconia

Uncertain; possible cubic zirconia (zirconium dioxide, ZrO₂) or synthetic glass

Polished red tiger’s-eye (likely)

Quartz pseudomorph after crocidolite; chiefly SiO₂ with iron oxides

Ruby (set in a gold pendant)

Ruby (Variety of Corundum, Al2O3)

Tumbled black tourmaline (likely schorl)

Schorl tourmaline, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Tumbled chalcedony / quartz pebble

Microcrystalline quartz (SiO₂), likely chalcedony with iron-oxide staining

Bismuth

Bismuth (Bi)

Dyed turquoise bead

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; likely stabilized or reconstructed turquoise

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

White seed-bead gemstone strand, likely freshwater pearl or shell pearl

Pearl: nacreous calcium carbonate, chiefly aragonite (CaCO₃) in conchiolin; identification uncertain from image

ABS Plastic (Acrylonitrile Butadiene Styrene)

(C8H8)x·(C4H6)y·(C3H3N)z

Diamond (Heart Cut)

Carbon (C)

Tumbled pink chalcedony (likely rose quartz or pink agate)

Chalcedony, microcrystalline quartz (SiO₂); exact variety is uncertain from the image

Pink Sapphire

Corundum (Al2O3 with trace Chromium and Iron)

Goldstone (Red)

Aventurine Glass

Tumbled chalcedony (likely gray agate)

Microcrystalline quartz, SiO₂ (chalcedony; possibly agate)

Sapphire (likely blue synthetic sapphire or blue glass in a ring)

Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.

Satin Spar (Selenite)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

White jade bangle with gray accent bead

Likely nephrite jade (microcrystalline tremolite–actinolite); possibly white jadeite, identification requires testing

Tumbled tiger’s-eye (probable)

Quartz, SiO₂, with fibrous amphibole pseudomorphs

Charoite

(K,Sr,Ba,Ca)15-16(Na,Ca)8(Si,Al)24O60(OH,F)4 · nH2O (Hydrated silicate of potassium, calcium, and sodium)

Diamond

Carbon (C)

Smoky Quartz

Silicon Dioxide (SiO2)

Polished blue chalcedony or glass-like quartz specimen

Chalcedony (microcrystalline SiO₂), possibly treated or synthetic; exact identification requires testing

Rough Corundum (likely Sapphire or Common Corundum)

Aluminum oxide (Al2O3)

Clear faceted gemstone in a gold-colored setting

Likely colorless quartz (rock crystal) or synthetic cubic zirconia; visual identification is inconclusive

Pink Cubic Zirconia (CZ)

Zirconium Dioxide (ZrO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Faceted yellow gemstone ring

Likely yellow sapphire (corundum), but exact identification requires testing; alternatives include citrine, chrysoberyl, or treated diamond.

Tumbled chalcedony pebble

Microcrystalline quartz (SiO₂), likely ferruginous or jasper-like chalcedony

Blue Topaz (specifically London Blue or Swiss Blue based on color saturation)

Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)

Cubic Zirconia (CZ) Jewelry

Zirconium dioxide (ZrO2)

Seraphinite

Clinochlore (a variety of the chlorite group)

Tumbled pale green stone, possibly serpentine or green aventurine

Uncertain from photograph; likely serpentine-group mineral, chiefly antigorite/lizardite, or quartz-bearing aventurine