Dark blue polished stone pendant
Indeterminate; possibly sodalite, lapis lazuli, or blue slag/glass-like material
Category
Browse synthetic glass (often categorized as a simulated mineral) specimens identified by the Rock Identifier community.
Dark blue polished stone pendant
Indeterminate; possibly sodalite, lapis lazuli, or blue slag/glass-like material
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond
Turquoise ring
Turquoise, hydrated copper–aluminum phosphate (CuAl₆(PO₄)₄(OH)₈·4H₂O)
Polished hematite bead necklace
Hematite (iron(III) oxide, Fe₂O₃), likely polished beads
Ruby
Corundum (Al2O3 with Chromium trace impurities)
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Rutilated Quartz
SiO2 with TiO2 inclusions (Rutile)
Peridot gemstone pendant
Olivine, gem-quality forsteritic olivine (approximately (Mg,Fe)₂SiO₄)
Ruby
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
Diamond (in jewelry)
Cubic Carbon (C)
Magnetic Hematite
Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)
K2 Stone (or K2 Jasper)
Azurite-in-Granite (Potassium Feldspar, Quartz, Plagioclase, Muscovite, and Azurite)
Ametrine
Silicon Dioxide (SiO2) with iron impurities
Blue quartz (likely dyed or synthetic-treated quartz beads)
Quartz, silicon dioxide (SiO₂)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Blue Sapphire
Corundum (Al2O3)
Ruby
Corundum (mineral species), variety: Ruby (Al2O3 with Cr3+ as the chromophore)
Lapis Lazuli
A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).
Pearls (likely freshwater cultured pearls)
Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin
Cut gemstone ring, likely diamond
Diamond (carbon, C), faceted gemstone; exact stone identification is uncertain from the image
Lapis Lazuli (in Matrix)
Na8[Al6Si6O24]S2 (Lazurite as the primary component)
Faceted yellow gemstone, likely citrine
Citrine (quartz), SiO₂; possibly yellow sapphire or synthetic glass without testing
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Moonstone (bead form)
Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Blue Agate Geode (Dyed)
Cryptocrystalline Quartz (SiO2)
Ruby (set in a gold pendant)
Ruby (Variety of Corundum, Al2O3)
Diamond
Diamond (C - Pure Carbon)
Yellow-orange faceted gemstone, likely citrine or yellow topaz
Citrine: quartz, SiO₂; yellow topaz: Al₂SiO₄(F,OH)₂
Diamond jewelry pendant or cluster
Diamond, crystalline carbon (C), likely mounted in metal
Diamond (or high-quality simulant like Cubic Zirconia)
Carbon (C) - Native Element
Amethyst (Tumbled/Weathered Quartz)
Amethyst (SiO2 with iron impurities)
Zircon
Zirconium Silicate (ZrSiO₄)
Sodium Polyacrylate (Superabsorbent Polymer)
Sodium Polyacrylate [-CH2-CH(COONa)-]n
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Diamond
Diamond (pure carbon; C)
Turquoise cabochon pendant
Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O
Diamond (Heart Cut)
Carbon (C)
Bismuth crystal
Bismuth (Bi), commonly laboratory-grown
Apatite
Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))
Hematite bead bracelet
Hematite (iron(III) oxide, Fe₂O₃), likely polished specular hematite