Garnet (Pyrope or Almandine)
Silicate (X3Y2Si3O12)
Category
Browse this appears to be a man made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen. specimens identified by the Rock Identifier community.
Garnet (Pyrope or Almandine)
Silicate (X3Y2Si3O12)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Quartzite with inclusions or weathered surface
Quartzite
Quartz (Granular)
Silicon Dioxide (SiO2)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Gold Nuggests
Native Gold (Au)
Fossilized Brachiopod
Phylum Brachiopoda (replaced by Calcite/CaCO3)
Geode (Quartz chalcedony variety)
SiO2 (Silicon Dioxide)
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in sedimentary/volcanic host
Magnetite (likely in Hematite or Ironstone)
Magnetite (Fe3O4)
Gold Nugget (or Gold Grain)
Native Gold (Au)
Bornite
Bornite (Cu5FeS4)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Gold Nugget
Native Gold (Au)
Peacock Ore
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with iridescent tarnish
Copper Ore (likely Chalcopyrite in Matrix)
Chalcopyrite (CuFeS2)
Aragonite (specifically Mexican Marbled Onyx)
Aragonite (Calcium Carbonate, CaCO3)
Limonite with Hematite
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Chrysoprase
Silicon dioxide (SiO2) with nickel impurities
Green Onyx (Banded Calcite)
Banded Calcite / Aragonite (CaCO3)
Limonite Concretion (Ironstone)
Limonite (Hydrated Iron(III) Oxide-Hydroxide, FeO(OH)·nH2O)
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
Pink Quartz (likely dyed)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Petrified Wood
Silicified wood (Quartz/Chalcedony replacement of cellulose)
Gold
Native Gold (Au)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Gold Nugget
Native Gold (Au)
Aventurine Quartz
Silicon dioxide with inclusions (KAl2(AlSi3O10)(OH,F)2)
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
Rose Quartz with Schist Matrix
Silicon Dioxide (SiO2) with Mica-Schist
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Jewelry (Ring)
Bornite
Bornite (Cu5FeS4)
Fossilized Coral (Petoskey-style)
Hexagonaria percarinata (Fossilized Rugose Coral)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Pyrite in Quartz
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)