Mineral (Refined Metal)

Mystic Topaz

Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)

Gold

Native Gold (Au)

Gold

Native Gold (Au)

Weathered copper-bearing porphyritic rock (probable andesite or altered volcanic rock)

Likely propylitically altered andesite/latite; green color may reflect chlorite, epidote, or chrysocolla/malachite staining

Silver (S925)

Native Silver (Ag)

Aquamarine cabochon ring

Aquamarine, blue variety of beryl (Be₃Al₂Si₆O₁₈)

Granite

Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)

Rutilated quartz (likely a cabochon set in metal)

Quartz, SiO₂, containing rutile inclusions (TiO₂)

Gold-bearing quartz sulfide specimen

Native gold (Au) with quartz (SiO₂), likely associated with iron sulfides such as pyrite

Beryl (likely Aquamarine) in matrix

Be3Al2(SiO3)6 (Beryllium Aluminum Silicate)

Aquamarine

Beryllium aluminum silicate (Be3Al2Si6O18)

Goldstone (aventurine glass)

Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)

Opalite (Synthetic Opalized Glass)

Synthetic Silicon Dioxide (SiO2) glass

Possible iron-rich concretion or weathered ironstone

Goethite/hematite-bearing limonite concretion (tentative)

Vesicular basalt (possible scoria)

Basaltic volcanic rock; chiefly plagioclase, pyroxene, and iron-rich minerals, with vesicles formed by trapped gas

Porphyritic basalt

Basalt with pink potassium-feldspar phenocrysts; likely alkaline or trachybasaltic composition

Iron-stained brecciated quartz vein rock

Quartz-rich hydrothermal breccia; predominantly SiO₂ with iron oxides/hydroxides (hematite, goethite) and likely minor host-rock minerals

Copper-bearing Quartz (with Malachite and Iron Oxides)

Quartz (SiO2) with Malachite (Cu2CO3(OH)2) and Hematite/Limonite (Fe2O3)

Slag Glass

Vitreous Silicate Residue

Coarse-grained granite pegmatite

Granitic pegmatite; mainly quartz (SiO₂), feldspar, and mica

Iron-stained quartz-rich rock, likely brecciated quartz vein

Quartz (SiO₂) with iron oxides/hydroxides, chiefly hematite and goethite; possibly limonite

Diamond jewelry

Diamond (crystalline carbon, C)

Diamond ring

Diamond (crystalline carbon, C)

Likely golden mica-bearing metamorphic rock

Micaceous schist, possibly biotite schist; composition commonly quartz + feldspar + biotite/phlogopite mica

Gold Nugget

Gold (Au)

Gold

Gold (Au)

Mohave Turquoise (Composite/Stabilized)

Hydrated copper aluminium phosphate (CuAl6(PO4)4(OH)8·4H2O) with stabilizing resin and metallic inclusions

Amber (likely a small polished amber piece)

Natural fossil resin; amber is an organic mineraloid, not a crystalline mineral. The image alone cannot confirm authenticity.

Mixed small pebbles and mineral grains

Unidentified detrital sediment; likely quartz-, feldspar-, and lithic fragments

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)

Sandstone

Arenite (Siliclastic sedimentary rock), SiO2 + various minerals

Synthetic Zinc/Polycarbonate Composite (Bey-specimen)

Zinc Alloy (Zamak 3) with Polycarbonate (C15H16O2)n Overlay

Pale green tumbled mineral, likely prehnite

Prehnite — Ca₂Al(AlSi₃O₁₀)(OH)₂; identification is provisional from the photograph

Gold Ore in Matrix

Native Gold (Au) in Quartz/Host Rock

Limonite with Quartz

FeO(OH)·nH2O (Limonite) with SiO2 (Quartz)

Polished unakite pendant

Unakite: quartz + epidote + pink potassium feldspar

Limonite (Ironstone)

Hydrated Iron(III) Oxide-hydroxide (FeO(OH)·nH2O)

Green copper-bearing rock, possibly chrysocolla-bearing matrix

Undetermined copper-mineralized rock; green areas may include chrysocolla, malachite, or chlorite

Gold

Gold (Au)

Emerald (green gemstone) pendant

Emerald, green variety of beryl (Be₃Al₂Si₆O₁₈); stones appear to be faceted and set in jewelry

Sea Glass (Teal/Turquoise)

Amorphous Silica (SiO2) with trace metal oxides

Iron-oxide-stained rock fragment, possibly ironstone

Indeterminate iron-rich rock; iron oxides/hydroxides such as hematite (Fe₂O₃) or goethite (FeO(OH)) may provide the rusty coloration