Milky Quartz with Nephrite Jade
Silicon Dioxide (SiO2) with Ca2(Mg,Fe)5Si8O22(OH)2
mineral/metamorphic
Category
Mineral With Artificial Coating
Browse mineral with artificial coating specimens identified by the Rock Identifier community.
Learn about Mineral With Artificial Coating in the encyclopedia
View all →
Chert (Jasper/Mudstone variety with Oxidation)
Silicon dioxide (SiO2)
sedimentary
Sapphirine in Magnesian Schist
Sapphirine: (Mg,Al)8(Al,Si)6O20
metamorphic
Chert (Green Chert)
Microcrystalline silica (SiO2)
sedimentary
Amethyst or Smoky Quartz Geode Slice
Crystalline Silicon Dioxide (SiO2) with iron impurities
mineral
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Milky Quartz
Crystalline Quartz (SiO2)
mineral
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Banded Gneiss with Quartz Vein
Gneiss containing SiO2 (Quartz) intrusion
metamorphic
Gold Ore (Auriferous Quartz with Chalcopyrite/Pyrite)
Au (Native Gold) in Quartz (SiO2) with FeS2 (Pyrite) or CuFeS2 (Chalcopyrite)
Mineral
Hawk's Eye / Pietersite (Tiger's Eye variant)
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Wishing Stone
Greenschist or Basalt with Quartz/Calcite Vein
metamorphic
Amber / Copal
Organic resin, C10H16O
mineral
Shale
Argillaceous Sedimentary Rock
sedimentary
Limonite Concretion
FeO(OH)·nH2O (Hydrated Iron Oxide)
sedimentary
Shark Tooth Fossil
Elasmobranchii fossil (likely Carcharias or Odontaspis sp.)
fossil
Glauconitic Sandstone
Glauconitic Sandstone (Greensand)
sedimentary
Dalmatian Jasper
Peralkaline Feldspar Rhyolite
igneous
Sandstone with Manganese Dendrites
Arenite (mostly SiO2) with Manganese Oxide inclusions (MnO2)
sedimentary
Moqui Marble
Iron Oxide Concretion (Hematite/Goethite-cemented Sandstone)
sedimentary
Amazonite
K(AlSi3O8)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Mica Schist with Quartz
Crystalline Schist (SiO2 + KAl2(AlSi3O10)(OH)2)
metamorphic
Gneiss
Gneissic Metamorphic Rock
metamorphic
Granitic Gneiss
Gneiss (quartz-feldspar-mica complex)
metamorphic
Fossiliferous Limestone
Biomicrite / Fossiliferous Limestone (CaCO3)
fossil
Sandstone
Arenite (SiO2 principal composition)
sedimentary
Gold-bearing Quartz Ore
Auriferous Quartz (SiO2 with Au)
mineral
Ruby
Corundum (Al2O3 with Chromium)
mineral
Yellow Aventurine
Quartz (SiO2) with inclusions
mineral
Blue Quartz
Quartz (SiO2) with inclusions
Mineral
Sandstone with Quartz/Calcite druse
Arenite with druse (SiO2 or CaCO3)
sedimentary
Amber
Succinite (organic fossilized resin)
mineraloid
Blue Topaz
Aluminum Silicate Fluoride Hydroxide - Al2SiO4(F,OH)2
gemstone
Greenstone / Greenschist
Greenschist (metamorphosed mafic rock)
metamorphic
Geode (Unopened)
Silica Concretion / Geode (Formula: SiO2 for quartz internal contents)
sedimentary
Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Sedimentary
Schist with Quartz/Mica
Mica Schist (primarily Muscovite and Quartz)
Metamorphic
Common Opal
Hydrated Amorphous Silica (SiO2·nH2O)
mineraloid
Vesicular Basalt
Vesicular Basalt
igneous
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 - Muscovite component)
metamorphic
Mica Schist
Schist (Crystalline metamorphic rock)
metamorphic