Mineral (Man Modified)

Likely lepidolite-bearing pegmatite

Lithium-mica pegmatite, chiefly lepidolite (K(Li,Al)₃(Si,Al)₄O₁₀(F,OH)₂) with quartz and feldspar

Polished Bumblebee jasper

Bumblebee jasper (calcite–orpiment/realgar-rich volcanic material; composition varies)

Iron-stained quartz vein in altered host rock

Quartz (SiO₂) with iron oxides/hydroxides, likely hematite and goethite; host rock uncertain from the image

Dark green metamorphic rock, likely serpentinite

Serpentinite, chiefly serpentine-group minerals (antigorite/lizardite/chrysotile), commonly with magnetite and chromite

Tumbled pink amethyst

Quartz (SiO₂), purple-pink variety colored by trace iron; exact identification is uncertain from the image

Polished serpentine pebble

Serpentinite, composed chiefly of serpentine-group minerals (e.g., lizardite, antigorite, chrysotile)

Unidentified dark, foliated metamorphic rock

Likely biotite schist or hornblende-bearing gneiss; exact identification requires testing

Small colored gemstone or glass cabochons (uncertain)

Not identifiable from the image; the pieces may be colored glass or synthetic stones rather than natural minerals.

Dalmatian Jasper (Dalmatian Stone)

Perthitic Feldspar with Arfvedsonite/Riebeckite

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Pink tourmaline (rubellite), faceted gemstone

Elbaite, a lithium-bearing tourmaline; approximate formula Na(Li,Al)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Quartz vein in a light-colored host rock

Quartz (SiO₂), possibly in quartz-rich vein rock

Weathered granite (likely)

Granite, a quartz–feldspar–mica intrusive igneous rock

Weathered basalt (likely vesicular basalt)

Basalt; chiefly plagioclase feldspar, pyroxene, and minor olivine/iron oxides

Pink calcite cluster

Calcite, calcium carbonate (CaCO₃)

White howlite (likely small tumbled pieces)

Howlite, Ca₂B₅SiO₉(OH)₅

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂)

Small brown mineral fragment (undetermined)

Unidentified; image detail is insufficient for a reliable species identification

Pale green calcite

Calcite (CaCO₃)

Weathered basalt pebble

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar, pyroxene, and commonly olivine

Iron-oxide-stained rock, likely limonite/goethite-rich material

Likely goethite (α-FeO(OH)) and/or limonite (a mixture of hydrated iron oxides), staining a silicate-rich rock

Likely petrified wood

Silicified wood; fossilized plant tissue, commonly replaced by quartz (SiO₂)

Black volcanic glass or basalt pendant

Likely basalt (fine-grained mafic rock), possibly obsidian (volcanic glass)

Likely pyrite (“fool’s gold”) fragment

Pyrite, FeS₂

Quartz crystal cluster (likely iron-stained quartz)

Quartz, silicon dioxide (SiO₂), with possible iron-oxide inclusions

Quartz crystal (likely milky or clear quartz)

Quartz, silicon dioxide (SiO₂)

Quartz cluster (likely milky quartz)

Quartz, silicon dioxide (SiO₂), trigonal crystal system

Clear quartz crystal pendant

Quartz (silicon dioxide, SiO₂)

Iron-stained quartz

Quartz (SiO₂), likely stained by iron oxides

Quartz-rich stone fragment

Likely quartz (SiO₂), though the image is too dim to identify confidently

Amethyst crystal cluster

Amethyst, purple variety of quartz (SiO₂)

Gneiss

Gneiss

Green glassy stone, possibly aventurine or green jade

Unidentifiable from the image; possible quartz-rich aventurine (SiO₂) or jadeite/nephrite

Quartz (massive milky quartz)

Quartz, silicon dioxide (SiO₂)

Purple druzy quartz (likely dyed or coated)

Quartz, SiO₂ (trigonal crystal system)

Greenstone (likely chlorite-rich metamorphic rock)

Greenschist; commonly composed of chlorite, actinolite, and epidote, with possible albite

Galena specimen

Galena (PbS), commonly associated with sphalerite and other sulfides

Tumbled gneiss or granitic gneiss pebble

Quartz–feldspar–mica gneiss; composition typically quartz, plagioclase/alkali feldspar, and biotite or hornblende

Iron-rich rock fragment, possibly limonite/goethite

Limonite (mixture of hydrated iron oxides, commonly goethite, FeO(OH))

White quartz crystal cluster (likely druzy quartz)

Quartz, SiO₂; likely a quartz-lined cavity fragment

White quartz pebble

Quartz (silicon dioxide, SiO₂), likely milky quartz

Quartz geode fragment (likely amethyst/citrine-bearing)

Microcrystalline and crystalline quartz, SiO₂, with possible iron staining or amethyst coloration