Emerald and Diamond (Jewelry Setting)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities) and Carbon (C)
Category
Browse mineral (processed metal) specimens identified by the Rock Identifier community.
Emerald and Diamond (Jewelry Setting)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities) and Carbon (C)
Lavender Quartz (appearing as beads) and Druzy Quartz
Silicon Dioxide (SiO2)
Quartz crystal pendant
Quartz (silicon dioxide, SiO₂), likely rock crystal or milky quartz
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Granite
Intrusive Igneous Rock
Gossan (Iron Hat)
Iron oxide-rich weathered rock (primarily Limonite and Goethite with secondary Quartz)
Opalite
Synthetic glass (SiO2 + metal additions)
Graphite
Graphite (Carbon, C)
Quartz Vein in Host Rock (Likely Slate or Shale)
Hydrothermal Quartz (SiO2) in Pelitic host rock
Blue Calcite
Calcium Carbonate (CaCO3)
Native Copper (in coinage alloy)
Copper (Cu)
Granite
Intrusive Igneous Rock
Metallic iron meteorite (probable)
Iron meteorite, typically kamacite–taenite (Fe–Ni alloy)
Limonite with Quartz (Gossan)
Hydrated iron(III) oxide-hydroxide mixture (FeO(OH)·nH2O) with Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Limonite (Iron Stone/Gossen)
Limonite (FeO(OH)·nH2O)
Gold
Native Gold (Au)
Quartz Pebble
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Native Copper in Matrix
Native Copper (Cu)
Natural Gold Nugget
Native Gold (Au)
Amber Inlay Jewelry
Fossilized Resin (C10H16O)
Sandstone (Quartzose Sandstone / Feldspathic Sandstone)
SiO2 with minor impurities (Fe2O3, KAlSi3O8)
Opalite
Synthetic Glass (Hydrated Silica Simulant)
Quartz Vein in Schist / Gneiss
Silicon Dioxide (SiO2) in Metamorphic Matrix
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Rough Emerald Crystals
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Gossan
Ferruginous gossan (Iron-rich capping)
Granite Pebble
Intrusive Igneous Rock (Quartz, Feldspar, Mica)
Eudialyte
Eudialyte (Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2)
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
Gold Ore (in Quartz/Pyrite)
Native Gold (Au) with Quartz (SiO2) and Pyrite (FeS2)
Cubic Zirconia (as used in jewelry setting)
Zirconium dioxide (ZrO2)
Pyrite
Iron Sulfide (FeS2)
Gold Nugget
Gold (Au)
Slag Glass (Cullet)
Amorphous Silica (man-made), primarily SiO2 with trace metal oxides
Quartzite pebble
Quartzite (SiO2) with iron oxide staining
Pyrite in Matrix with Copper Alterations
Iron Sulfide (FeS2) with secondary Copper carbonates/sulfides
Red Sandstone (Iron-Rich)
Arenite (Fe2O3)
Sandstone (Red)
Arenite (Fe2O3 heavy)