Mineral (Treated)

Heat-Treated Citrine (Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Topaz

Topaz (Al2SiO4(F,OH)2)

Yellow chalcedony (likely heat-treated or resin-coated)

Microcrystalline quartz, SiO₂

Ruby

Corundum (Al2O3 with Chromium traces)

Faceted yellow gemstone, possibly citrine

Unconfirmed from the image; if citrine, it is iron-colored quartz (SiO₂).

Polished carnelian agate

Carnelian, a red-orange variety of chalcedony (microcrystalline SiO₂)

Yellow faceted gemstone, likely citrine

Citrine (yellow quartz, SiO₂); identification from the image is tentative

Yellow Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Tumbled carnelian/chalcedony

Carnelian, orange-red microcrystalline quartz (SiO₂), a variety of chalcedony

Blue Agate (Dyed or Treated Chalcedony)

Silicon Dioxide (SiO2), microcrystalline quartz variety

Orange Crackle Quartz

Silicon Dioxide (SiO2) with thermal fracturing

Bornite

Bornite (Cu5FeS4)

Citrine (Quartz variant)

SiO2 (Silicon Dioxide)

Tumbled citrine quartz

Quartz, silicon dioxide (SiO₂), yellow variety commonly called citrine

Tumbled ruby in matrix

Corundum (Al₂O₃), commonly with mica, calcite, or other matrix minerals

Aura Quartz

Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)

Carnelian agate

Cryptocrystalline quartz (SiO₂), iron-oxide-bearing chalcedony

Likely limestone or chalky carbonate rock

Calcite-rich limestone; predominantly calcium carbonate (CaCO₃)

Yellow faceted gemstone earrings, likely citrine or yellow beryl

Citrine: quartz, SiO₂; possible yellow beryl: Be₃Al₂Si₆O₁₈

Multi-stone gemstone ring

Likely faceted blue topaz or synthetic blue stone with clear stones, possibly cubic zirconia or diamond; metal setting appears silver-colored alloy

Quartz (Citrine or Iron-stained variety)

Silicon Dioxide (SiO2)

Polished blue glassy mineral specimen, likely sodalite or blue aventurine

Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph

Turquoise carving

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

Polished blue copper mineral, likely chrysocolla or dyed howlite

Chrysocolla: hydrated copper phyllosilicate, approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O; visual identification is uncertain from the image

Chalk

Calcium Carbonate (CaCO3)

Honey-colored quartz (likely citrine or iron-stained quartz)

Quartz, silicon dioxide (SiO₂); possibly iron-stained or heat-treated citrine

Dyed or treated turquoise-like tumbled stone

Likely turquoise (CuAl₆(PO₄)₄(OH)₈·4H₂O), though blue-green magnesite or howlite imitation is possible

Mystic Topaz (Treated Quartz or Topaz)

Silicate Mineral (SiO2 or Al2SiO4(F,OH)2) with Titanium coating

Blue agate slice with quartz crystal cavity

Chalcedony (microcrystalline SiO₂) with quartz (SiO₂)

Polished native copper nugget

Native copper (Cu), likely with cuprite/tenorite and iron-oxide alteration

Tumbled amethyst

Quartz, purple variety; silicon dioxide (SiO₂), colored mainly by iron impurities and irradiation

Possible chalcopyrite-bearing sulfide fragment

Likely chalcopyrite (CuFeS₂), possibly with pyrite or bornite

Tumbled yellow chalcedony (likely citrine-like quartz or yellow jasper)

Microcrystalline quartz, SiO₂; exact identification requires testing

Smoky Quartz and Citrine

Silicon Dioxide (SiO2)

Yellow Quartz / Citrine Quartz

Silicon Dioxide (SiO2)

Quartz (Citrine variety)

Silicon Dioxide (SiO2)

Aquamarine

Beryl (Be3Al2Si6O18)

Orange Calcite

Calcium Carbonate (CaCO3)

White Agate (Chalcedony)

Silicon Dioxide (SiO2)

Tumbled carnelian

Carnelian, orange-red chalcedony (microcrystalline quartz, SiO₂)

Tumbled jasper or chalcedony

Microcrystalline quartz, SiO₂; likely opaque jasper with chalcedonic zones