Mineral (Processed Alloy)

Granite

Phaneritic Plutonic Felsic Rock

Likely rose quartz or quartz-rich stone

Quartz, silicon dioxide (SiO₂); pink coloration may reflect trace iron, titanium, or inclusions

Stibnite (antimonite)

Stibnite, Sb₂S₃

Tumbled pale-yellow chalcedony (possibly yellow jasper)

Microcrystalline quartz, SiO₂; chalcedony/jasper varieties

Dyed Blue Agate

Chalcedony (Silicon Dioxide / SiO2)

Pyrite-bearing rock, likely quartz vein

Pyrite (FeS₂) in quartz-rich host rock

Milky Quartz

Silicon dioxide (SiO2)

Possible sodalite-bearing rock

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely in a feldspathic matrix

Clear quartz (likely quartz crystal fragment)

Quartz, silicon dioxide (SiO₂)

Blue slag glass / industrial glass fragment

Artificial silicate glass, composition variable; likely copper- or cobalt-colored furnace slag

Granite

Phaneritic Felsic Igneous Rock

Slag

Ferrous slag (by-product of iron smelting)

Rose quartz (likely)

Quartz, silicon dioxide (SiO₂), cryptocrystalline to crystalline variety

Carved serpentine wing sculpture

Serpentine-group rock, chiefly antigorite/lizardite: Mg3Si2O5(OH)4

Silver (Morgan Dollar)

Native Silver (Ag) - 90% Silver, 10% Copper alloy

Blue tumbled stone, possibly sodalite

Likely sodalite (Na₈(Al₆Si₆O₂₄)Cl₂); identification is uncertain from the image

Tumbled milky quartz

Quartz (SiO₂), microcrystalline or massive variety

Copper-bearing rock, likely native copper in matrix

Native copper (Cu), possibly with cuprite/iron-rich matrix

Iridescent bismuth crystal

Bismuth (Bi), commonly laboratory-grown

Aquamarine

Beryl (Be₃Al₂Si‑₆O₁₈)

Aquamarine

Beryl (Be₃Al₂Si₆O₁₈)

Granite

Granite (Felsic Plutonic Rock)

Pink tourmaline (rubellite)

Elbaite tourmaline, lithium sodium aluminum borosilicate: Na(Li1.5Al1.5)Al6(BO3)3Si6O18(OH)4

Tumbled quartz

Quartz (silicon dioxide, SiO₂)

Tumbled quartz crystal

Quartz (silicon dioxide, SiO₂)

Green glassy gemstone-like specimen

Likely synthetic glass or treated quartz; exact identification requires testing

Amethyst and mixed gemstone bracelet

Amethyst: purple quartz, silicon dioxide (SiO₂); likely accompanied by other quartz or decorative mineral beads

Granite countertop with a small pale mineral fragment

Granite; predominantly quartz, feldspar, and mica

Native Copper

Native Copper (Cu)

Iron-rich concretion or slag-like rock

Goethite–hematite limonite concretion, possibly iron slag

Tumbled amethyst

Amethyst, purple quartz (SiO₂), colored mainly by iron-related defects

Beryl (Variety: Aquamarine/Green Beryl)

Beryllium Aluminum Silicate (Be3Al2Si6O18)

Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Decorative polished pebbles

Likely mixed quartz-rich lithologies, including quartzite, jasper, and/or basalt

Clear quartz crystal

Quartz (silicon dioxide, SiO₂)

Peacock ore (bornite/chalcopyrite), likely treated

Bornite, Cu₅FeS₄, and/or chalcopyrite, CuFeS₂

Dyed turquoise-colored lava stone beads

Vesicular basalt (scoria), commonly sold as dyed lava rock

Tumbled pale green aventurine or chalcedony

Quartz-group silica, primarily microcrystalline SiO₂; possible fuchsite-bearing aventurine

Mineral Sand (Heavy Mineral Sand Concentrate)

Placer deposit concentrate containing minerals such as ilmenite, rutile, zircon, and magnetite

Green sea glass (likely bottle glass)

Human-processed soda–lime silicate glass; not a natural mineral or rock

Milky Quartz

Silicon Dioxide (SiO2)

Aquamarine

Beryl (Be3Al2Si6O18)