Peridot (Olivine)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Category
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Peridot (Olivine)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
Purple Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Red Jade (Dyed Quartzite)
Silicon Dioxide (SiO2) - variety Quartzite
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
Olivine (Peridot)
Olivine Group (Magnesium Iron Silicate), (Mg, Fe)2SiO4
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Blue Crackle Quartz (Dyed Fire Agate/Quartz)
Silicon Dioxide (SiO2) with artificial dye treatment
Dyed Pink Dragon Vein Agate
Silicon Dioxide (SiO2) with artificial dye additives
Dyed Pink Agate (Crackled)
Silicon Dioxide (SiO2) - Chalcedony variety
Peridot
Olivine ((Mg, Fe)2SiO4)
Smoky Quartz
SiO2 (Silicon Dioxide)
Blue Agate (Tumbled and Dyed)
Silicon Dioxide (SiO2) with likely organic dyes
Blue Tiger's Eye (Hawk's Eye)
Pseudomorph of Quartz after Crocidolite (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Smoky Quartz
SiO2 (Silicon Dioxide)
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Dyed Blue Agate
Cryptocrystalline Quartz (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Dyed Howlite (simulating Lavender/Purple Jade or Charoite)
Howlite: Ca2B5SiO9(OH)5 (when natural)
Dyed Dalmatian Jasper (Dalmatian Stone)
Perthitic Feldspar with Arfvedsonite inclusions
Blue Dyed Agate Geode
Chalcedony (cryptocrystalline Quartz), SiO2
Sandstone
Arenite
Agate (Polished Slice)
Banded Chalcedony (SiO2)
Heat-Treated Citrine (Amethyst)
Silicon Dioxide (SiO2) with iron impurities
Citrine (Iron-stained Quartz)
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Blue Agate (likely dyed)
Silicon Dioxide (SiO2)
Smoky Quartz
SiO2 (Silicon Dioxide with aluminum impurities)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Limestone (specifically a Crushed Aggregate fragment)
Calcium Carbonate (CaCO3)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
Dyed Blue Agate (Slab)
Agate (Variety of Chalcedony/Microcrystalline Quartz), SiO2
Blue Dyed Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Peacock Ore (Bornite or Chalcopyrite)
Bornite (Cu₅FeS₄) or iridescent Chalcopyrite (CuFeS₂)
Orange Calcite
Calcium Carbonate (CaCO3)
Limonite/Goethite (Iron Ore)
Hydrous ferric oxides (FeO(OH)·nH2O)
Calcite
Calcium Carbonate (CaCO3)
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide mixture)
Orange Calcite (Cleavage Rhomb)
Calcite (Calcium Carbonate, CaCO3)
Sandstone (River Pebble)
Arenite (primarily SiO2)