Mineral And Metamorphic Rock

Mica Schist

Mica Schist (Predominantly Muscovite/Biotite)

Quartzite River Rock (with Limonite staining)

Quartzite (SiO2)

Fulgurite

Fulgurite (Lechatelierite), amorphous SiO2

Ruby

Corundum (Al2O3 with Chromium trace impurities)

Quartz

Quartz (SiO₂)

Serpentine

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

Green Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2

Quartzite

Quartzite (SiO2)

Quartz in Basalt (Xenocryst)

Silicon Dioxide (SiO2) in Mafic Igneous Volcanic Rock

Clear Quartz (Rock Crystal)

Quartz (SiO₂)

Gneiss

Gneiss (Metamorphic rock of variable composition, typically SiO2 rich)

Howlite

Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)

Pyrite

Iron Sulfide (FeS2)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Quartz (Quartzite fragment)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Milky/Iron-stained)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade metamorphic rock)

Banded Gneiss

Gneiss

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Serpentinite

Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)

Blue Apatite

Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)

Lapis Lazuli

Na6Ca2(Al6Si6O24)(S,SO4,Cl)1-2 (primarily containing Lazurite with inclusions of Calcite and Pyrite)

Serpentine

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

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Garnet

Garnet Group (complex nesosilicates with general formula X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+, V3+)

Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2)

Anthracite Coal

Anthracite (Carbon-rich metamorphic rock)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Marble (White)

Metamorphosed Limestone (mainly CaCO3)

Gneiss (specifically a Granitic Gneiss specimen)

Gneiss (high-grade metamorphic rock primarily composed of Quartz, Feldspar, and Biotite/Amphibole)

Mica Group Minerals

There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).

Slate

Slate (Foliated metamorphic rock consisting mainly of quartz and muscovite or illite)

Quartz / Quartzite

Silicon Dioxide (SiO2)

Quartzite (or Ferruginous Quartzite)

Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)

Hematite

Iron(III) oxide (Fe2O3)

Jade (Nephrite or Jadeite)

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

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Quartzite (Water-worn Cobble)

Quartzite (Composition: 90%+ SiO2)

Graphite

Graphite (Carbon, C)

Rock Crystal Quartz

Quartz (SiO₂)

Quartz (Clear / Rock Crystal)

Silicon Dioxide (SiO2)