Metamorphic And Igneous

Milky Quartz

Silicon Dioxide (SiO2)

Diorite (Salt and Pepper Rock)

Diorite

Granite

Phaneritic plutonic rock (SiO2 range 65-75%)

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Porphyry

Porphyritic Igneous Rock

Diorite

Intrusive Igneous Diorite

Diorite

Intrusive Igneous Diorite

Basalt

Basalt (Igneous Volcanic)

Porphyry (likely Porphyritic Andesite or Basalt)

Porphyritic Igneous Rock

Basalt

Mafic Igneous Basalt

Basalt

Mafic Igneous Rock

Basalt

Mafic Igneous Rock

Basalt

Mafic Igneous Rock

Basalt

Mafic Igneous Rock

Basalt River Stone

Basaltic Igneous Rock

Lapis Lazuli

Lazurite-dominated metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)

Green Quartzite

Metamorphic rock primarily composed of Silicon Dioxide (SiO2) with mineral inclusions like fuchsite or chlorite

Banded Slate or Siltstone with Quartz/Calcite Veins

Protolith-derived Siltstone or Slate (varies based on degree of metamorphism)

Pink Quartzite

Quartzite (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4

Serpentine (Serpentinite)

Serpentinite (complex of minerals including Antigorite, Lizardite, and Chrysotile); (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Serpentine

Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Amazonite

Microcline (KAlSi3O8) with Pb impurities

Grey Agate

Silicon Dioxide (SiO2) - variety: Agate/Chalcedony

Banded Agate

Cryptocrystalline Quartz (SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Tiger's Eye (Inlaid in a band)

SiO2 (Silicon Dioxide with Crocidolite inclusions)

Emerald in Matrix

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities

Rutilated Quartz

Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions

Moonstone

Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8

Serpentine

Antigorite / Lizardite / Chrysotile [(Mg,Fe)3Si2O5(OH)4]

Rough Quartz (Grey-Green)

Silicon Dioxide (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Banded Agate

Cryptocrystalline Silica (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Orange Calcite

Calcium Carbonate (CaCO3)

Peach Moonstone (Feldspar variety)

Orthoclase Feldspar (KAlSi3O8) with inclusions

Milky Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Yellow Aventurine

Quartz containing Muscovite or Mica inclusions (SiO2)

Schorl (Black Tourmaline)

Sodium Iron Aluminum Borosilicate Hydroxide - NaFe2+3Al6Si6O18(BO3)3(OH)3OH

Dyed Agate

Silicon Dioxide (SiO2) - variety Chalcedony