Mineral (Native Element Alloy)

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Copper-bearing rock, likely cuprite/malachite-bearing breccia

Cuprite (Cu₂O) with malachite [Cu₂CO₃(OH)₂], native copper, and iron oxides in a silicate host

Small gold-colored mineral crystal, likely pyrite

Pyrite (FeS₂), tentatively; native gold is a less likely alternative

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Turquoise

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

Diamond

Carbon (C)

Aquamarine

Beryllium aluminum silicate (Be3Al2Si6O18)

Aquamarine (Pale variety)

Beryl (Be3Al2Si6O18)

Pink Lepidolite

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

Yellow Jasper

Jasper (Silicon Dioxide, SiO2)

Likely gold-bearing quartz vein rock

Quartz (SiO₂), possibly with native gold and iron sulfides/oxides

Diamond

Diamond (pure native carbon, C)

Gold Ore in Quartz

Native Gold (Au) in Quartz (SiO2)

Gold and Diamond

Native Gold (Au) and Diamond (C)

Gold in Quartz Ore

Hydrothermal Quartz with native Gold (Au)

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic volcanic rock)

Native Gold (in Jewelry)

Gold (Au)

Diamond

Native Carbon (C)

Diamond

C (Native Carbon)

Rough Diamond (Uncut Diamond)

Native Carbon (C)

Rough Diamond

C (Native Carbon)

Diamond

Native Carbon (C)

Erythrite on Matrix

Cobalt Bloom (Co3(AsO4)2·8H2O)

Turquoise (Dyed Howlite or Magnesite imitation)

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

Stibnite (antimonite)

Stibnite, Sb₂S₃

Turquoise (with Hematite)

CuAl6(PO4)4(OH)8·4H2O

Black Jasper

Black Jasper (Silicate mineral - SiO2)

Likely metallic mineral specimens

Probably native iron or iron oxide/hydroxide material; exact identification requires testing

Iron-stained quartz-bearing rock

Quartz (SiO₂), likely in a limonite/goethite-rich matrix

Turquoise

Hydrated copper aluminum phosphate, CuAl6(PO4)4(OH)8·4H2O

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Turquoise

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

Sunstone

Oligoclase (Plagioclase Feldspar) - (Ca, Na)(Al, Si)4O8

Gold-bearing quartz vein specimen

Native gold (Au) in quartz (SiO₂), likely with iron-oxide staining

Turquoise (Green variety)

Hydrous phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O

Turquoise (possible Dyed Magnesite/Howlite)

CuAl6(PO4)4(OH)8·4H2O

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Mohave Turquoise (Composite/Stabilized)

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

Gold-Bearing Quartz

Silicon Dioxide with Native Gold (SiO2 + Au)

Native Copper with Cuprite and Quartz

Copper (Cu), Cuprite (Cu2O), Quartz (SiO2)

Tumbled pale-green quartz, likely prasiolite or green aventurine

Quartz (SiO₂), with minor iron- or other mineral-related coloring

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions