Mineral (Native Element Alloy)

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O

Yellow Jasper

Chalcedony (Silicon Dioxide with Iron inclusions), SiO2

Iron-stained quartz vein rock

Milky quartz (SiO₂) with limonite/goethite iron oxides, possibly in altered host rock

Gold-bearing Quartz (Auriferous Quartz)

Quartz (SiO2) with native Gold (Au) inclusions

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic extrusive volcanic rock with secondary mineral infilling)

Gold Ore in Quartz/Matrix

Native Gold (Au) in Quartz (SiO2) matrix

Gold Nugget

Gold (Au)

Small yellow mineral specimen (possibly sulfur)

Unidentified; appearance alone is insufficient to confirm sulfur

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic volcanic rock)

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Spinifex Textured Komatiite

Ultramafic Komatiite

Chert

Chert (SiO2)

Malachite cabochon or polished bead

Malachite, Cu₂CO₃(OH)₂

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Iron sulfide-rich ore, possibly pyrite-bearing gossan

Likely pyrite (FeS₂) with iron oxides/hydroxides and host rock; exact identification requires testing

Quartz Vein in Matrix (Gneiss/Schist)

Silicon Dioxide (SiO2) in Metamorphic Rock Matrix

Polished quartz-rich pebble, possibly gold-bearing quartz vein material

Quartz (SiO₂) with probable iron-oxide staining and metallic sulfide inclusions

Gold Ore in Matrix

Native Gold (Au) in Quartz/Host Rock

Gold-bearing Quartz

Auriferous Quartz (SiO2 with Native Gold inclusion)

Gold in Quartz

Hydrothermal Quartz with Native Gold (SiO2 with Au)

Polished turquoise cabochon (likely turquoise or imitation)

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

Chrysocolla

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O

Quartz-bearing pegmatitic rock, likely granite/pegmatite

Feldspar–quartz pegmatite; chiefly K-feldspar, plagioclase, quartz, and possible mica

Yellow quartz-bearing rock, possibly sulfur-stained quartz or calcite

Indeterminate; likely quartz (SiO₂) and/or calcite (CaCO₃) with yellow iron/sulfur staining

Raw pale-green beryl (likely aquamarine)

Beryl, Be₃Al₂Si₆O₁₈; blue-green variety is aquamarine

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Gold-bearing quartz vein rock

Quartz (SiO₂) with probable native gold and iron-oxide minerals

Turquoise

Hydrous phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Turquoise and Red Coral

Turquoise: CuAl6(PO4)4(OH)8·4H2O; Red Coral: Corallium rubrum (organic gemstone)

Gold-bearing quartz vein rock

Milky quartz (SiO₂) with probable native gold and iron-oxide staining

Celestite (Celestine)

Strontium sulfate (SrSO4)

Thunder Egg (Agate/Jasper filled)

Chalcedony variety Agate/Jasper in a Rhyolitic matrix

Green Jasper

Silicon Dioxide (SiO2) with impurities

Galena (lead sulfide)

Galena, PbS

Bismuth Crystal

Bismuth (Bi)

Gold-bearing quartz vein ore

Native gold (Au) in quartz with iron-oxide alteration; likely limonite/goethite and possibly sulfides

Moqui Marble (Shaman Stone)

Iron Oxide Concretion (Hematite/Goethite-encased Sandstone)

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chalcopyrite on Quartz

Copper Iron Sulfide (CuFeS2)

Metal Chain Belt with Square Plates

Not applicable (man-made)

Ferrosilicon Slag (Industrial Vitrified Glass)

Vitreous Silicate Residue