Green Fluorite
Calcium Fluoride (CaF2)
Category
Browse not a rock (animated character) specimens identified by the Rock Identifier community.
Green Fluorite
Calcium Fluoride (CaF2)
Fluorite
Fluorite (Calcium Fluoride - CaF2)
Quartz (Engineered Quartz Surface)
Silicon Dioxide (SiO2) based composite
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Red Quartzite / Ferruginous Quartz
Quartzite (primarily Silicon Dioxide, SiO2 with Iron Oxide impurities)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Amethyst Quartz Pebble
Silicon Dioxide (SiO2) with iron impurities
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
Chert (variously known as Flint or River Pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Opal
Hydrous silicon dioxide (SiO2·nH2O)
Gold and Cubic Zirconia (San Judas Tadeo Pendant)
Native Gold (Au) with Synthetic Cubic Zirconia (ZrO2)
Amethyst (vibrant lilac/purple variety)
Silicon Dioxide (SiO2) with iron impurities
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Gold
Native Gold (Au)
Gold Nugget
Native Gold (Au)
Limonite (Iron Ore)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Amber in Matrix
Succinite (Carbon-based organic polymer)
Amber
Succinite (Resinite), C10-H16-O
Turritella Agate (Fossiliferous Chert)
Silicified Elimia tenera (Fossiliferous Chalcedony)
Lapis Lazuli
Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)
Sapphirine in Magnesian Schist
Sapphirine: (Mg,Al)8(Al,Si)6O20
Spiny Oyster Shell
Spondylus (Calcium Carbonate, CaCO3)
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurities)
Citrine Quartz
Citrine (Silicon Dioxide - SiO2)
Epidote with Unakite characteristics
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Moonstone
Adularia (orthoclase) or Albite (plagioclase), a potassium aluminum silicate of the feldspar group
Gold Nugget
Native Gold (Au)
Gold Nugget
Native Gold (Au)
Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Silicon dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
Zebra Jasper
Silicon Dioxide (SiO2) with various inclusions
Moqui Marbles
Iron Oxide Concretion (Hematite/Goethite)
Chert (with Limestone matrix)
Chert (Silica: SiO2)
Quartzite
Quartzite (primarily SiO2)
Jasper (specifically Fancy or Polychrome Jasper)
Silicon Dioxide (SiO2) - Chalcedony
Chert (Flint nodule)
Silicon dioxide (SiO2)
Celestite (Celestine) Geode
Strontium Sulfate (SrSO4)
Chert (River Stone/Pebble)
Chert (SiO2)