Mineral (Native Element Alloy)

Diamond

Carbon (C)

Diamond (in jewelry setting)

Diamond (C - Carbon)

Celestite

Celestine (SrSO4)

Gold Nugget / Native Gold

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold Flake / Placer Gold

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Diamond (or Diamond Simulant)

Carbon (C)

Pegmatite

Igneous Pegmatite

Native Gold

Native Gold (Au)

Diamond (faceted)

Diamond (Pure Carbon, C)

Celestite Geode

Strontium Sulfate (SrSO4)

Celestine (or Celestite) on Matrix

Celestine (SrSO4)

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic volcanic rock)

Beryl (Aquamarine) in Matrix with Schorl

Be3Al2Si6O18 (Beryl) with NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)

Metal Alloy (Jewelry)

Not a naturally occurring rock or mineral; likely a metal alloy for jewelry. Possible compositions include sterling silver (92.5% silver, 7.5% copper), or other silver/gold alloys.

Gold

Native gold (Au)

Native Copper

Native Copper (Cu)

Chalcopyrite

Copper iron sulfide (CuFeS2)

Diamond

Carbon (C)

Diamond

Carbon (C)

Gold Mineral

Native Gold (Au)

Native Copper

Native Copper (Cu)

Diamond (Cut Gemstone)

Carbon (C)

Pearl

Calcium Carbonate (Aragonite/Calcite) with Conchiolin (CaCO3)

Bismuthinite with Chalcopyrite and Quartz

Bismuthinite (Bi2S3) and Chalcopyrite (CuFeS2)

Native Copper within Host Rock

Native Copper (Cu)

Gold Nugget

Native Gold (Au)

Gold Nugget / Placer Gold

Native Gold (Au)

Lepidolite

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

Malachite

Copper Carbonate Hydroxide, Cu2CO3(OH)2

Diamond (in Gold Jewelry)

Carbon (C)

Diamond (faceted)

Diamond (Pure Carbon, C)

Diamond

Carbon (C)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Diamond (or Cubic Zirconia simulant)

Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ

Gold flakes

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Native Copper (Penny specimen)

Native Copper (Cu)

Diamond

Natural Diamond (Carbon, C)

Diamond (in Jewelry)

Carbon (C)