Quartz with Inclusions
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic And Igneous
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Blue Topaz
Al2SiO4(F,OH)2
gemstone
Potassium Feldspar (Microcline / Orthoclase)
KAlSi3O8
mineral
Moonstone
Orthoclase (KAlSi3O8) or Oligoclase with adularescence
gemstone
Garnet
Silicate mineral group (often Pyrope or Almandine in this color range)
gemstone
Agate
SiO2 (Chalcedony/Quartz)
sedimentary
Hematite
Iron Oxide (Fe2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz pebble / River stone
SiO2 (Silicon Dioxide)
mineral
Pyrite in Matrix (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Magnetite (or Magnetic Iron Ore)
Magnetite (Fe3O4)
mineral
Corundum
Corundum (Aluminium oxide, Al2O3)
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Zoisite with Rubellite (Ruby in Zoisite)
Zoisite with inclusions of Hornblende (Anyolite)
metamorphic
Muscovite
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Zoisite with Ruby
Anyolite (Calcium aluminum hydroxy silicate with Corundum) Ca2Al3(SiO4)3(OH)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
mineral
Greenschist
Greenschist (Chlorite Schist)
metamorphic
Gneiss
Metamorphic Gneiss
metamorphic
Reddish-brown crystalline rock, possibly weathered granite or garnet-bearing schist
Indeterminate; likely quartz–feldspar–mica rock with iron oxides, potentially garnet-bearing
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz / Feldspar Specimen
SiO2 (Quartz) / KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar Group)
mineral
Quartz (Pebble)
Silicon Dioxide (SiO2)
mineral
Black Tourmaline (Schorl)
NaFe3+3Al6(BO3)3Si6O18(OH)4
mineral
Quartz Crystal Rock
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
gemstone
Clear Quartz (Faceted)
SiO2 - Silicon Dioxide
gemstone
Faceted Clear Quartz or Diamond Simulant
Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic
gemstone
Quartz with inclusions
SiO2
mineral
Hypersthene
Hypersthene ((Mg,Fe)SiO₃)
Mineral
Garnet-bearing metamorphic rock, likely garnet schist or amphibolite
Almandine garnet (Fe₃Al₂Si₃O₁₂) in mica- or amphibole-rich matrix
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral