Mineral And Glass

Likely tumbled red mineral or glass imitation

Indeterminate; possibilities include red jasper (microcrystalline quartz, SiO₂) or dyed chalcedony

Blue tumbled glass-like specimen; likely blue slag glass

Likely man-made glass (silicate glass), not a natural mineral; exact material cannot be confirmed from the image

Fulgurite

Fulgurite (Lechatelierite)

Fulgurite

Fulgurite (Lechatelierite-rich variety)

Decorative gemstone bracelet or jewelry

Unidentifiable from the blurred image; likely colored glass or synthetic stones, possibly mixed gemstone beads

Emerald-like green beryl fragment

Beryl, Be₃Al₂Si₆O₁₈; green color typically from chromium or vanadium

Pearl and Garnet Glass

Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass

Polished blue-orange feldspar (likely labradorite or sunstone)

Plagioclase feldspar, likely labradorite (approximately (Ca,Na)(Al,Si)₄O₈)

Blue-green faceted pendant stone

Undetermined; possibly synthetic glass or a blue-green gemstone such as topaz or quartz

Small greenish-gold mineral fragment, possibly olivine (peridot)

Olivine-group silicate, (Mg,Fe)₂SiO₄; identification is uncertain from the image

Black tumbled stone, possibly obsidian

Obsidian, naturally occurring rhyolitic glass; identification is uncertain from the image alone

Quartz crystal cluster

Quartz (silicon dioxide, SiO₂), likely clear or milky quartz

Ethiopian green opal (likely common opal)

Opal, hydrated amorphous silica (SiO₂·nH₂O); exact identity cannot be confirmed from this small photo

Tumbled honey-colored quartz (likely iron-stained quartzite)

Quartz, silicon dioxide (SiO₂); possibly quartz-rich quartzite

Milky quartz pendant

Quartz (silicon dioxide, SiO₂)

Blue Slag Glass

Amorphous Silica (Industrial byproduct)

Pale green tumbled stone, possibly fluorite

Uncertain from the photo; appearance is consistent with fluorite (CaF₂)

Blue Goldstone

Aventurine Glass (SiO2 with Co and metallic inclusions)

Weathered quartz-rich metamorphic rock, possibly quartzite or gneiss

Quartz-dominant silicate rock; likely quartz (SiO₂) with feldspar, mica, and minor iron-oxide staining

White sea glass (naturally frosted glass fragment)

Man-made silicate glass, typically soda-lime glass; not a mineral or rock

Rounded quartz-rich pebble

Likely quartz sandstone or quartzite; visual identification is uncertain

Likely rough amethyst (purple quartz)

Quartz, SiO₂; amethyst variety

Weathered quartz-rich pebble, possibly chalcedony or quartzite

Microcrystalline quartz (SiO₂), or quartzite dominated by quartz

Possible rough green tourmaline (verdelite)

Tourmaline group; commonly elbaite, Na(Li₁.₅Al₁.₅)Al₆Si₆O₁₈(BO₃)₃(OH)₄

Rounded pinkish stone, likely quartzite or weathered sandstone

Probable quartzite (mostly quartz, SiO₂); sandstone is an alternative

Polished black gemstone, likely black obsidian

Obsidian (volcanic glass), chiefly silica-rich amorphous SiO₂

Opalite (Man-made Glass)

Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)

Quartz crystal fragment

Quartz (SiO₂), likely a small clear-to-gray crystal fragment

Tumbled cat’s-eye stone, likely cat’s-eye glass or imitation

Undetermined; natural chrysoberyl cat’s-eye is BeAl₂O₄, but the photo does not establish that identity

Blue Goldstone

Aventurine Glass

Garnet (likely Almandine or Pyrope)

Garnet Group (e.g., Almandine: Fe3Al2(SiO4)3; Pyrope: Mg3Al2(SiO4)3)

Milky quartz (rough specimen)

Quartz, silicon dioxide (SiO₂)

Milky quartz (possibly chalcedony)

Quartz, SiO₂; likely massive or cryptocrystalline quartz

Milky quartz

Quartz (silicon dioxide, SiO₂)

Milky quartz fragment

Quartz (silicon dioxide, SiO₂)

Amber (possibly rough amber)

Fossilized tree resin; chemically a complex organic mixture, commonly classified as succinite when Baltic in origin

Quartz with Schist Matrix

Crystalline Silicon Dioxide (SiO2) in micaceous schist

Likely tumbled quartz/chalcedony

Quartz (SiO₂), possibly milky quartz or pale chalcedony

Tumbled green glassy mineral, possibly aventurine or fluorite

Uncertain; likely quartz variety (aventurine quartz, SiO₂) or green fluorite (CaF₂)

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Likely amber or amber-like resin fragment

Amber (fossilized plant resin), commonly succinite; identification uncertain from the image

Milky quartz with iron staining

Quartz, silicon dioxide (SiO₂)