Ruby in Kyanite
Corundum in Disthene (Al2SiO5 + Al2O3)
Category
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Ruby in Kyanite
Corundum in Disthene (Al2SiO5 + Al2O3)
Tree Agate (also known as Dendritic Agate)
Silicon Dioxide with inclusions (SiO2 + Mn/Fe)
Amethyst with Marcasite accents
Amethyst (Silicon Dioxide SiO2) and Marcasite (Iron Sulfide FeS2)
Jasper and Mixed River Pebbles
Microcrystalline Quartz (Chalcedony / Jasper)
Fossilized Shark Tooth
Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron
Green Moonstone (Garnierite)
Nickel-bearing Magnesium Silicate (often a mix of Serpentine and Talc/Chlorite groups)
Aquamarine
Beryl (Be3Al2Si6O18 with trace Fe2+)
Epidote
Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Quartz Chip
Silicon Dioxide (SiO2)
Lapis Lazuli
Na8[Al6Si6O24]S2 (Lazurite component), a rock composed primarily of Lazurite, Calcite, and Pyrite
Chalcedony (Common Agate)
Silicon Dioxide (SiO2)
Pink Garnet (likely Almandine or Rhodolite)
Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)
Onyx (Black Onyx)
Onyx (Silicon Dioxide, SiO2)
Rose Quartz / Iron-stained Quartz
SiO2 (Silicon Dioxide)
Turquoise in Matrix
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Petrified Wood
Silicified Wood (Silicon Dioxide - SiO2)
Lapis Lazuli
Lapis Lazuli (Complex aggregate mainly of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Sea Glass
Amorphous silicon dioxide (glass)
Moonstone (bead form)
Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
Lapis Lazuli
Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Precious Coral (Red Coral)
Corallium rubrum (Calcium Carbonate, CaCO3)
Quartz (Small Grains)
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite / Chlorapatite [Ca5(PO4)3(F,Cl,OH)]
Dendritic Quartz
Silicon Dioxide with inclusions (SiO2)
Native Copper
Native Copper (Cu)
Variscite in Matrix
Variscite (AlPO4 · 2H2O)
Quartz Druzy on Matrix
Silicon Dioxide (SiO2)
Emerald and Diamond (Jewelry Setting)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities) and Carbon (C)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Green glassy slag or manufactured glass bead
Noncrystalline silicate glass; likely industrial glass/slag, not a true mineral
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
Green Jasper
Microcrystalline Quartz (SiO2) with mineral inclusions
Blue Quartzite
Quartzite (mostly SiO2 with mineral inclusions)
Moss Agate
Silicon dioxide (SiO2) with mineral inclusions
Chrysocolla on Quartz with Iron Oxides
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
Quartz Pebble
Silicon Dioxide (SiO2)
Diamond (in a jewelry setting)
Diamond (Carbon, C)
Diamond (in jewelry setting)
Cubic Carbon (C)
Native Copper (Penny specimen)
Native Copper (Cu)
Quartz
Silicon Dioxide (SiO2)
Quartz (Tumbled Peach/Pink Quartz)
Silicon Dioxide (SiO2)