Purple Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Category
Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.
Purple Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Conglomerate
Conglomerate (a clastic sedimentary rock)
Diamond
Diamond (C)
Iron Meteorite
Iron-nickel alloy (primarily kamacite and taenite)
Pink Quartz (likely dyed)
Silicon Dioxide (SiO2)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Smoky Quartz (Chlorite Inclusions)
Silicon Dioxide (SiO2) with trace Aluminum and Natural Irradiation
Faceted Diamond or Cubic Zirconia
Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ
Diamond (Uncut/Rough)
Carbon (C)
Natural Diamond (Faceted)
Diamond (pure carbon crystal, C)
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Crackled Quartz (Blue Dyed)
Silicon Dioxide (SiO2) with anthropogenic dye
Artificial Rock Face (Faux Rock)
Glass Fiber Reinforced Concrete (GFRC)
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite and Quartz inclusions
Blue Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
Ferruginous Quartz (River Pebble)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Peacock Ore (Bornite or Chalcopyrite)
Bornite (Cu₅FeS₄) or iridescent Chalcopyrite (CuFeS₂)
Smoky Quartz
SiO2 (Silicon Dioxide)
Agate (Dyed Blue)
SiO2 (Silicon Dioxide)
Diamond
Carbon (C)
Diamond (in a gold ring)
Diamond (pure carbon, C)
Diamond
C (Carbon)
Bowling Ball (Brunswick T-Zone Deep Space)
Polyester resin / Polyurethane polymer
River Cobble (Quartzite)
Meta-orthoquartzite
Blue Onyx (Dyed Agate/Chalky Chalcedony)
Silicon Dioxide (SiO2) with artificial pigment
Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
Dyed Quartz (often sold as 'Blue Quartz' or 'Blue Agate')
Silicon Dioxide (SiO2) with artificial pigment
Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Diamond
Diamond (pure Carbon, C)
Copper Bullion Round
Native Copper (refined), Cu
Diamond (appearing in jewelry)
Diamond (pure Carbon, C)
Iron Meteorite
Iron-nickel alloy (e.g., Kamacite, Taenite)
Placer Gold Nugget
Native Gold (Au)
Blue Lace Agate (Heat-treated/Crackle Quartz variety)
Silicon Dioxide (SiO2)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Porphyry
Porphyritic Rhyolite/Andesite
Diamond
Carbon (C)
Diamond (set in jewelry)
Carbon (C)
Yellow Quartz Pebble
Crystalline Silicon Dioxide (SiO2)