Man Made Metamorphic Style Composite

Moonstone

Orthoclase Feldspar (KAlSi3O8)

Pyrite

Iron Pyrite (FeS₂)

Serpentinite

Serpentinite (composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite)

Quartz (likely milky/rose quartz variety)

Quartz (SiO2 - Silicon Dioxide)

Dendritic Agate

Silicon Dioxide with Manganese or Iron Oxide inclusions (SiO2 + Mn/Fe)

Engineer Quartz/Quartzite

SiO2 (Silicon Dioxide with binders)

Yellow Jade (often Serpentine or Dolomite)

Primarily Serpentine (Mg3Si2O5(OH)4) or Dolomite (CaMg(CO3)2), though the term 'yellow jade' is also sometimes applied to varieties of true nephrite or jadeite.

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Emerald

Beryl (Be3Al2Si6O18), specifically the green variety colored by chromium or vanadium

Quartz (likely milky/gray variety)

Quartz (SiO₂)

Quartzite

Quartzite (primarily SiO2)

Granite

Phaneritic Felsic Igneous Rock

Smoky Quartz

SiO2 (Silicon Dioxide)

Quartz (likely tumbled or naturally water-worn)

Quartz (SiO₂ - Silicon Dioxide)

River Pebbles (Sandstone and Quartzite)

SiO2 (Quartz) dominated clastic rocks

Quartz (on matrix)

Quartz (Silicon Dioxide, SiO₂)

Granite

Granite (Felsic intrusive igneous rock)

Quartz (likely Yellow/Orange variety, possibly Citrine or Chalcedony with iron staining)

Quartz (SiO₂)

Chalcedony (Common Opal/Chert variety)

Silicon Dioxide (SiO2)

Iron Meteorite

Iron-nickel alloy (primarily kamacite and taenite)

Garnet (likely Pyrope or Almandine)

Garnet Group (complex nesosilicate minerals, e.g., Pyrope Mg3Al2(SiO4)3, Almandine Fe3Al2(SiO4)3, Spessartine Mn3Al2(SiO4)3, Grossular Ca3Al2(SiO4)3, Andradite Ca3Fe2(SiO4)3, Uvarovite Ca3Cr2(SiO4)3). The vivid red color in the image strongly suggests Pyrope or Almandine.

Anthracite Coal

High-rank coal (primarily Carbon, C)

Kyanite

Kyanite (Al2SiO5)

Marble

Metamorphosed Limestone/Dolomite

White Jade / White Chalcedony

Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)

Quartz

Silicon Dioxide (SiO₂)

Green Calcite

Calcite (CaCO3)

Jade (Nephrite or Jadeite)

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

Citrine

Quartz (SiO2) - specifically, a variety of macrocrystalline quartz

Granite

Granite (Phaneritic Quartz-Feldspar Felsic Rock)

Gossan (Iron Hat) with Quartz and Chlorite

Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite

Quartz

Silicon dioxide (SiO2)

Banded Gneiss

Gneiss (typically quartz, feldspar, mica, amphibole composition)

Lapis Lazuli

Lapis lazuli (a metamorphic rock primarily composed of Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Lapis Lazuli

Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Rock Crystal Quartz

Quartz (SiO₂)

Quartz (likely a clear or rock crystal variety)

Quartz (SiO2 - Silicon Dioxide)

Quartz (possibly milky quartz or quartz with inclusions)

SiO2 (Silicon Dioxide)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Kyanite

Kyanite (Al2SiO5)

Clear Quartz (or Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Rose Quartz

Rose Quartz (SiO₂)