Mineral (Native Element Alloy)

Copper-Bearing Sulfide Ore (likely Chalcopyrite or Bornite)

Chalcopyrite (CuFeS2) or Bornite (Cu5FeS4) in host rock

Native gold-bearing quartz/rock fragment

Native gold (Au), likely in quartz or iron-oxide matrix

Quartz-rich pegmatite specimen

Pegmatite composed mainly of quartz (SiO₂), feldspar, and mica, with possible tourmaline or garnet inclusions

Apache Tear

Obsidian (Natural volcanic glass)

Pink quartz (likely rose quartz)

Quartz, silicon dioxide (SiO₂), typically massive rose quartz colored by trace elements and microscopic inclusions

Diamond

Diamond (Pure Carbon, C)

Gold-bearing quartz sulfide specimen

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

Native silver fragment (probable)

Silver, Ag; possibly silver-bearing sulfide or plated metal

Weathered gold-bearing quartz/ironstone (possible gold nugget)

Native gold (Au), if metallic gold is present, in quartz–iron-oxide matrix

Quartz (specifically Milky Quartz or Quartzite)

Silicon Dioxide (SiO2)

Turquoise

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

Raw dark metallic mineral specimen, possibly native gold-bearing quartz or sulfide ore

Uncertain from image; possible pyrite/chalcopyrite-bearing quartz or gold-bearing sulfide matrix

Quartz-rich pegmatite fragment

Granitic pegmatite, chiefly quartz (SiO₂) with feldspar and mica

Aquamarine

Beryl (Be₃Al₂Si‑₆O₁₈)

Aquamarine

Beryl (Be₃Al₂Si₆O₁₈)

Garnet-set butterfly brooch

Likely almandine or pyrope garnet, iron–aluminum silicate (Fe₃Al₂Si₃O₁₂ or Mg₃Al₂Si₃O₁₂)

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O

Malachite-bearing matrix specimen

Malachite, Cu₂CO₃(OH)₂, likely with chrysocolla and host rock

Milky Quartz

Silicon Dioxide (SiO2)

Turquoise

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

Probable weathered sulfide-bearing rock

Indeterminate; possibly pyrite- or chalcopyrite-bearing matrix

Native gold specimen

Native gold (Au), likely with quartz or sulfide matrix

Native gold nuggets

Gold (Au), usually with minor silver and copper

Diamond

Carbon (C)

Iridium sand or Osmium-Iridium nugget

Iridosmine / Osmiridium (Platinoid grouping)

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite or Limonite inclusions

Aura Druzy Agate (Star Shape)

Silicon Dioxide (SiO2) with Titanium/Metal Vapor Coating

Rough Diamond

Diamond (Pure Carbon: C)

Pegmatitic quartz–feldspar rock with dark mica

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

Yellow Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Turquoise in Matrix

CuAl6(PO4)4(OH)8·4H2O

Quartz-rich gold-bearing rock (possible quartz vein ore)

Hydrothermal quartz vein; predominantly SiO₂, with possible iron oxides/sulfides and minor native gold

Lepidolite

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

Turquoise in Matrix

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

Pyrite (iron pyrite)

Pyrite, FeS₂

Iron-stained garnet-bearing rock, possibly almandine garnet

Garnet-group silicate, likely almandine (Fe₃Al₂Si₃O₁₂), in a quartz–iron-oxide matrix

Turquoise

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

Turquoise

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

Native gold nugget or flake

Native gold (Au), possibly with minor silver/electrum

Beryl (Variety: Aquamarine/Green Beryl)

Beryllium Aluminum Silicate (Be3Al2Si6O18)

Chert / Flint

Microcrystalline quartz (SiO2)

Graphite

Graphite (Carbon, C)