Mineral (Metamorphic Pseudomorph)

Azurite in Gossan

Azurite (Cu3(CO3)2(OH)2) in Limonite/Goethite matrix

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Zebra Jasper

Silicon Dioxide (SiO2) with various inclusions

Pink Stained Rock (Likely Quartzite or Sandstone with Iron Oxide Staining)

Quartzite (metamorphic) or Sandstone (sedimentary); coloration likely due to hematite or other iron oxides.

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)

Aventurine (likely Green Aventurine)

Quartz (SiO2) with included minerals (Fuchsite or Chlorite for green color)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Quartz Vein in Host Rock (Gabbro or Basalt)

Silicon Dioxide (SiO2) with Mafic Silicates

Aquamarine and clear quartz

Aquamarine (Be3Al2Si6O18), Quartz (SiO2)

Granodiorite (Gneissic Pebble)

Granodiorite displaying minor foliation

Citrine

Quartz (SiO2) - variety Citrine

Quartz (likely a macrocrystalline variety like milky quartz or smoky quartz, given the appearance in the image)

Quartz (SiO₂ - Silicon Dioxide)

Quartz

Silicon Dioxide (SiO2)

Gold

Gold (Au)

Smoky Quartz

SiO2 (Silicon Dioxide)

Amethyst

Quartz (SiO2) variety

Citrine

SiO2 (Silicon Dioxide)

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Weathered Quartzite or Chert Pebble

Silicon Dioxide (SiO2)

Quartz (in matrix)

Quartz (SiO₂)

Strawberry Quartz

Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite

Peridot (Olivine)

Olivine ((Mg,Fe)2SiO4)

Citrine

Quartz (SiO₂) variety

Quartz (likely)

Quartz (SiO2 - Silicon Dioxide)

Quartz

Quartz (SiO₂)

Calcite

Calcite (CaCO₃)

Quartz

Quartz (SiO₂)

Pyrite in Quartz (Drill Core)

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions

Cobaltoan Calcite / Pink Dolomite (Possible)

Cobaltoan Calcite: (Ca,Co)CO3; Pink Dolomite (or Thulite): CaMg(CO3)2 or Mn-Dolomite / (Thulite: Mn2+3Al2(Si2O7)(SiO4)O(OH))

Pebble (likely Sandstone or Granitic Pebble)

Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)

Shale or Argillite

Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)

Serpentinite (Serpentine Rock)

Serpentinite is a rock composed of one or more serpentine group minerals, chiefly antigorite, chrysotile, and lizardite, with the general formula (Mg,Fe)3Si2O5(OH)4. Often includes other minerals like magnetite, talc, and chromite.

Milky Quartz

Quartz (SiO₂)

Aquamarine

Beryl (Be3Al2Si6O18), specifically the blue-green variety

Agate

Agate (Cryptocrystalline Variety of Quartz, SiO2)

Bi-Color Tourmaline (or Watermelon Tourmaline)

Tourmaline (complex borosilicate mineral group with general formula AD3G6(BO3)3T6O18(OH,O)4)

Gossan (Iron Hat)

Limonitic Gossan (predominantly FeO(OH)·nH2O)

Agate (specifically, multi-colored or pastel-dyed agate)

Silicon dioxide (SiO2) - specifically, a cryptocrystalline variety of quartz known as Chalcedony, with banding classified as Agate. (If it were Fluorite, the chemical formula would be Calcium Fluoride - CaF2).

Strawberry Quartz

Quartz (SiO₂) with Goethite (α-FeO(OH)) and/or Lepidocrocite (γ-FeO(OH)) inclusions

Greenstone / Chert

Cryptocrystalline Quartz (SiO2) or Altered Basalt

Quartz Vein in Gneiss or Basalt

Milky Quartz (SiO2) within Metamorphic Host Rock