Granite
Intrusive Igneous Rock
igneous
Category
Mineral (Metal)
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Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Granite
Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase
igneous
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
mineral
Orgonite Pyramid (containing Amethyst and mixed minerals)
Silicon Dioxide (SiO2) in synthetic resin
gemstone
Colorless Quartz (Rhinestone)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
sedimentary
Granite
Plutonic Igneous Rock
igneous
Olivine
(Mg,Fe)2SiO4
mineral
Granite
Intrusive igneous rock
igneous
Bauxite
Bauxite (Al(OH)3, AlO(OH), AlOOH)
sedimentary
Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Quartz Vein in Host Rock (Gneiss/Schist)
Silicon Dioxide (SiO2) within a metamorphic matrix
metamorphic
Slag (Industrial)
N/A (Anthropogenic Slag)
industrial by-product
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Copper Ore (likely Malachite or Chrysocolla staining)
Copper Secondary Mineral (e.g., Cu2CO3(OH)2)
mineral
Beryl in Quartz Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Bauxite
Aluminium ore (Hydrated aluminium oxides AlOx(OH)3-2x)
sedimentary
Gossan (with Limonite and Hematite)
Gossanous iron-oxide rock (Fe2O3 · nH2O)
sedimentary
Slag Glass
Silicon dioxide with impurities
mineral
Green Aura Quartz (Titanium treated Kyanite or Quartz)
Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating
mineral (man-made aura treatment)
Quartz Vein in Host Rock
Hydrothermal Quartz (SiO2) in Slates/Schists
metamorphic
Fluorite
Calcium Fluoride (CaF2)
mineral
Granite
Felsic intrusive igneous rock
igneous
Lepidolite
K(Li,Al)3(Al,Si,IV)4O10(F,OH)2
mineral
Gold Ore (Auriferous Quartz with Chalcopyrite/Pyrite)
Au (Native Gold) in Quartz (SiO2) with FeS2 (Pyrite) or CuFeS2 (Chalcopyrite)
Mineral
Bauxite
Bauxite (Al2O3·2H2O)
sedimentary
Quartz-bearing Pegmatite with Metallic Sulfides
Pegmatite / Quartz-Feldspar Matrix with Pyrite and Mica
igneous
Granite
Granite (Intrusive Igneous Rock)
igneous
Bauxite
Al2O3·2H2O (Aluminum Hydroxide)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Beryl (likely Aquamarine or Green Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Slag
Anthropogenic Vitreous Silicate / Ferro-silicate Slag
igneous
Native Gold Flake
Gold (Au)
mineral
Aura Quartz Geode
Titanium/Gold bonded Quartz (SiO2 with metallic coating)
mineral
Granite
Intrusive Igneous Rock (Felsic)
igneous