Peridotite (with Olivine)
Peridotite (dominantly (Mg, Fe)2SiO4)
igneous
Category
Sedimentary (Primary) With Artificial Modification
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Peridotite
Peridotite (varieties include Dunite, Lherzolite, Harzburgite)
igneous
Cubic Zirconia (CZ) Jewelry
Zirconium dioxide (ZrO2)
mineral (synthetic)
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Turquoise
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
mineral
Dragon Vein Agate
Silicon Dioxide (SiO2)
mineral
Mexican Beach Pebbles
Vesicular Basalt / Andesite (Polished by erosion)
igneous
Gold-bearing Quartz with Pyrite
Quartz (SiO2) with Gold (Au) and Pyrite (FeS2)
mineral
Native Copper
Native Copper (Cu)
mineral
Sunstone
Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8
mineral
Diamond
Carbon (C)
mineral
Sardonyx Cameo
Silicon Dioxide (SiO2) - variety Cryptocrystalline Quartz
Mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Ruby
Corundum (Al2O3 with Chromium trace)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz with Chalcopyrite and Pyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst (Quartz)
Amethyst (SiO2 with iron impurities)
mineral
Chondrite Meteorite
Ordinary Chondrite (Fe-Ni alloy, Olivine, Pyroxene)
Mineral
Diamond (in jewelry setting)
Diamond (C - Carbon)
mineral
Gold
Native Gold (Au)
mineral
Lepidolite on Matrix
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Gold Nugget
Native Gold (Au)
mineral
Diamond (in Jewelry Setting)
Carbon (C) - Isometric-Hexoctahedral
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Diamond (set in a gold ring)
Carbon (C) - Adamantine cubic carbon
mineral
Emerald in Matrix (Quartz/Schist)
Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities
mineral
Chondrite Meteorite
Stony Meteorite (L, H, or LL Chondrite)
igneous
Tiffany Stone
Fluoritized Opal Beryllium Ore (principally Bertrandite, Be4Si2O7(OH)2)
metamorphic
Specular Hematite (Specularite) in Matrix
Specularite (Fe2O3)
mineral
Quartzite
Quartzite (Primary mineral: Quartz, SiO2)
metamorphic
Obsidian
Volcanic Glass (Primary component: SiO2)
igneous
Granite Pebble
Phaneritic plutonic rock (SiO2 primary)
igneous
Greenstone / Epidosite
Epidosite (primary minerals: Epidote and Quartz)
metamorphic
Obsidian
Volcanic glass (primary composition: SiO2)
igneous
Granite
Phaneritic plutonic rock (SiO2 primary)
igneous
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Copper-bearing Quartz (with Malachite and Iron Oxides)
Quartz (SiO2) with Malachite (Cu2CO3(OH)2) and Hematite/Limonite (Fe2O3)
Mineral Specimen
Lapis Lazuli
Complex mixture containing Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite
metamorphic
Peacock Ore
Bornite (Cu5FeS4) or Chalcopyrite treated with acid
mineral