Mineral (Found In Igneous And Metamorphic Rocks)

Kyanite

Kyanite (Al2SiO5)

Agate

Silicon Dioxide (SiO2)

Prase quartz with actinolite inclusions

Silicon dioxide (SiO2) with Calcium Magnesium Iron Silicate Hydroxide inclusions

Pink Granite (Gneissic transition)

Pink Biotite Granite

Pyrite

Iron Sulfide (FeS2)

Optical Calcite (Iceland Spar)

Calcite (Calcium Carbonate, CaCO3)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Blue Dumortierite Quartz

AlAl6BSi3O18 (Dumortierite) within SiO2 (Quartz)

Aquamarine

Beryl (Be3Al2Si6O18 with Fe2+ impurities)

Sodalite

Sodalite - Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Greenschist

Chlorite schist

Blue Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Yellow Agate

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Note: Image shows a biological specimen (Rat), not a rock. Representative geological equivalent: Galena (due to lead-grey colors in fur).

Galena (PbS)

Eudialyte in Matrix

Eudialyte [Na15Ca6(Fe,Mn)3Zr3(Si25O73)(O,OH,H2O)3(Cl,OH)2]

Hematite Nodule

Hematite (Fe2O3)

Granitic Pegmatite

Pegmatitic Granite

Blue Kyanite

Kyanite (Al2SiO5)

Sodalite

Sodalite, Na8(Al6Si6O24)Cl2

Quartz Pebble (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Marble

Metamorphosed Limestone (mainly CaCO3)

Hypersthene

Hypersthene ((Mg,Fe)SiO3)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Slate

Slate (foliated metamorphic rock)

Ruby Fuchsite / Ruby in Fuchsite

Ruby (Al2O3 variety corundum) and Fuchsite (K(Al,Cr)2AlSi3O10(OH)2 - a chromium-rich variety of muscovite mica) in Quartz matrix

Citrine

Silicon dioxide (SiO2)

Nuummite

Orthorhombic amphibole (Gedrite and Anthophyllite mixture) - (Mg,Fe)7Si8O22(OH)2

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Blue Quartzite

Quartzite with inclusions (often Dumortierite or Magnesio-riebeckite), SiO2

Lapis Lazuli

Na8[Al6Si6O24]S2 (Lazurite component), a rock composed primarily of Lazurite, Calcite, and Pyrite

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Clear Quartz

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Citrine (Quartz variant)

SiO2 (Silicon Dioxide)

Jade (Nephrite or Jadeite)

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)

Agate

Agate (Silicon Dioxide, SiO2)

Gneiss

Gneiss (High-grade Metamorphic Rock)